Professionally cleaning gray and black tanks

The gray and black holding tanks in RVs can get a bit dirty over time, so it is generally recommended to get them professionally cleaned out every year or so, depending on usage. We also have had issues with odors and sensor mis-reads, so thought getting them cleaned might help.

While in the LA area, we engaged All Pro Water-Flow So Cal to flush our tanks; we found them via an ad on the campground map. I can’t whole-heartedly recommend them, though, as they didn’t solve the sensor mis-reads. I’m not sure if the issue was something other than dirty tanks, or perhaps they didn’t do a good enough job. I’ll try to get the sensors looked at during an upcoming service.

The mechanism is simple enough: a hose connects to a pressure washer, with another hose with spray heads that is inserted into each of the tanks in turn, and manipulated to move around inside the tanks, washing their internal surfaces:

Pressure washer

Flushing

Flushing

Flushing

Flushing

Flushing

Water softener regeneration and backflush hoses and adapters

The water softener was a great addition to our coach. But it requires periodic maintenance, to regenerate it every couple of weeks, and backflush it quarterly.

Backflushing it requires reversing the connections, to have water go in the outlet, and dump out the inlet. When I first backflushed it, I used the plastic double-female connector that came with it, with a couple of my quick-connectors:

Backflush adapter

Thusly:

Backflushing

On the output side, I didn’t have a double male adapter, so I just held the hose to my sewer connector, which was a bit messy:

Backflushing

I thought I could do better, so I bought some brass double adapters, which together with my quick-connectors, works much better:

Backflush adapters

Backflush adapters

When a test strip indicates the water coming out of the softener is getting hard, it is time to regenerate it (typically every couple of weeks, depending on where we are). This is done by pouring two containers of table salt into the top of the softener (after turning off the water, of course), then I connect a special hose to a sewer rinse cap, that adapts the water hose to the sewer hose, ensuring I can flush out the salty water without making a mess:

Regenerating

Here’s a closer look at the sewer adapter:

Regenerating

Another couple of pics of regenerating:

Regenerating

Regenerating

I also replaced the hose between the filter and softener with a more flexible one, and added a clear sewer hose adapter so I could see the water flow rate:

Regenerating

(You can also see the cap off the water softener in that pic.)

I do enjoy my plumbing bits. It may seem overly complex, but all those quick connectors and adapters make this required maintenance much easier.

Dryer magnets

The door on the dryer in our coach (yes, we have a washer and dryer) tends to swing closed when open. So I attached a couple of strong magnets to the cupboard and dryer doors to keep it open.

Here are the magnets I used:

Magnets

I attached them to the doors with Glue Dots:

Glue Dots

I do have magnets with self-adhesive backs, but they aren’t as powerful, and I need opposite polarities for each magnet so they stick together, so using the glue dots on the magnets works better:

Glue dot on magnet

A magnet on the dryer door:

Magnet on dryer

And a magnet on the enclosing cupboard door:

Magnet on door

They meet and hold the door open:

Door and dryer

Replaced carbon monoxide detector

RVs all come with a carbon monoxide detector, sometimes called a propane detector. Our coach is all-electric, so doesn’t have any propane on board, but such a detector is still useful.

These detectors are usually rated for 60 months from sale, which is five years. Our 2017 Tiffin Allegro Bus 40SP is six years old, so it wasn’t surprising that the detector in our bedroom recently started to give an end-of-life beep and light flash… at 2 in the morning, of course.

So it was time to replace it.

I ordered another model from Amazon, not doing a very good job of checking for suitability; I hadn’t noticed that the original unit is flush mounted, so a surface mount wouldn’t work (especially being a little smaller, so wouldn’t cover the hole in the wall).

So then I did what I probably should have done, and ordered a replacement of the same model as original from the Tiffin Parts Store, part number 5060082.

Here’s the old carbon monoxide detector:

Old carbon monoxide detector

Unscrewed from the wall:

Unscrewed from wall

It has the manufacture date stamped on the back:

Manufacture date

The new detector from Tiffin:

New detector

It was manufactured in November:

New detector

Some tools to replace it; I got out both the wire caps and heat shrink connectors:

New detector and tools

I decided to use the heat shrink connectors; here they are connected and crimped:

Wires connected

And using the heat gun to shrink them:

Heat gun

All done:

Replaced detector

The light was blinking when I first connected it, which confused me as not one of the listed statuses, but it was just a startup sequence; after a few minutes it was a steady green. I pressed the button to test it, and all was well. Done!

Replaced more recessed lights

Back in November 2021 I replaced some malfunctioning recessed LED lights in the kitchen / galley of our coach.

The half bath also had three lights that weren’t working properly, either very dim or flashing. We have a couple of motion-activated lights in there, and generally don’t use the ceiling lights, so it hasn’t been a high priority. But I finally got around to fixing them.

Here’s one of the old lights, with the cover removed:

Old light

A replacement light:

New light

I replaced the first of the three lights with wire nuts, as I had for the previous replacements, but for the second I thought I’d try heat shrink wire connectors, since that is what Tiffin used throughout the coach:

Heat shrink wire connectors

I got a hot air gun to use with those:

Heat gun

The replaced light, using those connectors, before heat shrinking:

Replaced light

Done:

Replaced light

The third light was trickier. The wires were very short; too short to use those connectors:

Short wires

But I came across a cunning technique: putting a wire cap in the end of a drill, to get more reach and leverage in twisting them on:

Wire cap in drill

It wasn’t easy, but I got them connected using that technique:

Wires connected

The replaced light mounted:

Replaced light

And with the cover on:

Replaced lights

All three replaced lights (the ones that are off didn’t need repairing; only the three vanity lights):

Replaced lights

I’m glad to have that repair finally done.

Govee smart thermometers

It can be nice to know what the temperature and humidity is around us, so I added some smart thermometer/hygrometer units to our coach.

To see the current and historical temperature and humidity outside, I added a sensor unit under a slide-out, attached via Command Strips:

Thermometer

I also wanted to monitor the temperature in the wet bay; it has a heater to prevent it getting too cold, since having our plumbing freeze up would be bad, but I wanted to keep an eye on it, just in case:

Wet bay sensor

Those sensors don’t have displays, but for inside I wanted units that not only have sensors, but also display the current values. So I got a couple of units with e-ink displays; here’s the one in the living room, below the smoke detector:

Living room sensor

And the one in the bedroom, between the smoke detector and thermostat (the big temperature on the thermostat is the set level):

Bedroom thermometer

All of these sensors feed data into the Govee Home app, which can show the current values on its home page (along with ugly seasonal graphics):

App

The same screen after the holiday season:

Govee Home screenshot

Tapping on one of the thermometers shows historical data, so I can see how the temperature and humidity have changed over time:

App

Fun fact: that higher humidity was when we were on the coast at Corpus Christi, and the lower humidity was inland at Lockhart; makes quite a difference. And yes, the temperature inside can vary greatly throughout the day; we tend not to run the AC or heaters except for uncomfortably hot or cold weather, preferring to open windows for fresh air when feasible. (Not a cost thing, since we typically don’t pay for electricity at campsites, but it’s quieter, and fresh air is nice.)

Improved tow bar pins

One of the essential components of towing our truck behind our motorhome is the air-powered brake controller, which presses on the brake pedal in the truck when the brake is applied in the coach, using its air braking system. The brake controller is secured to the truck via a D-pin, seen on the right of this picture:

Brake controller

When hooking up for a recent travel day, I noticed that the pin was missing; it must have not been secured and dropped out somewhere. I made do with a zip tie for that trip, and ordered a replacement from the manufacturer. While there, I saw that they had improved pins for the tow bar, too, so I also ordered that:

Tow bar pins and brake controller pins

So now I have a spare brake controller pin, in case I lose it again. And the new tow bar pins are much easier to use. Here’s one of the pins that came with the tow bar; it just has a metal ring that has the locking linchpin attached; it can be difficult to pull out the tow bar pin when disconnecting, if the truck is at an angle:

Old tow bar pin

In use:

Truck connection

Compare to the new tow bar pin; it has the same tethered linchpin, but the big red handle makes it much easier to pull out:

New tow bar pin

In use:

New tow bar pin

A huge improvement, highly recommended.

Micro-Air EasyTouchRV smart thermostats

Our motorhome was produced in 2017, during a time when Tiffin was slowly updating the technology. So it has a mixture of analog switches for some things (like cockpit shades), smart network-based controls using the Spyder multiplex wiring system, and non-integrated controls like the power management and heating/cooling.

Our coach has three rooftop AC units, plus AquaHot hydronic heating. More modern coaches integrate these into the Spyder touch panels, but in this vintage they are independently controlled via three thermostats like this one in the bedroom:

Old thermostat

(Note that that Spyder touch panel at the bottom isn’t original; I upgraded it from a much inferior panel that came with the coach.)

While these thermostats were fine, they weren’t as convenient as they could be. (Shock, having to get off our butts to adjust them!)

I’ve been wanting to upgrade them, like I did with the Spyder panel, and I recently got around to that. I purchased one Micro-Air EasyTouchRV thermostat panel, the model compatible with our ACs (352C):

EasyTouchRV

Here’s the old thermostat:

Old thermostat

I pulled off the cover to unmount it via the two screws:

Removed cover

Pulling it away from the wall, I reached the three connectors for the wires:

Wires

The new panel comes with mount points that are screwed into the wall:

Mount points

Hooking up the new unit was simply a matter of unplugging the old one and plugging in the new one (being careful to not let the wires drop inside the wall; there wasn’t a lot of slack).

Here’s the new unit mounted:

New unit

Much nicer:

New unit

Not only does it have a nicer display, it can be controlled remotely via Wi-Fi or Bluetooth via an app:

App

When using both cool and heat, one can set it to Away mode to have upper and lower limits, to keep the temperature within that range:

App

The upper and lower limits on the display:

New unit

I was satisfied with that experience, so I ordered two more units for the other thermostats:

More new units

The front and middle AC units are controlled by thermostats in a cupboard above the passenger chair (they have remote room sensors towards the front and middle on the ceiling, so being enclosed in a cupboard doesn’t affect their performance):

Front and mid thermostats

A closer look at the old front and middle thermostats:

Front and mid thermostats

With the covers removed:

Front and mid thermostats

Like with the bedroom one, easy enough to swap the plugs:

Wires

The new unit:

New unit

Here’s a look at the mount points for the new unit; they come with a spacer that is broken off once screwed into place:

Mount points

The mount points before breaking the connector:

Mount points

The wood is thick enough to hold the screw, but I still used the cap on the other side, to avoid wires rubbing on the protruding screw:

Cap

The new units installed:

New units

So much nicer! Highly recommended.

Slide topper bracing to reduce flapping in wind

Our coach has fabric awnings over the slide-outs, commonly called slide toppers. These are a feature of premium RVs to prevent debris and water from coming inside when bringing in the slides, among other benefits.

But one downside of slide toppers is that they can be noisy in strong winds, as wind gusts cause them to flap up and down. And in very strong winds one can get concerned that they could get damaged.

One solution for flapping slide toppers is to bring in the slides, perhaps only on the windward side. But that reduces the living space, so is a hassle. And we can’t sleep in our bed with all of the slides in, as the bed has to be raised up in this situation.

Another solution is to brace the slide toppers. There are a few ways to do that, but the easiest is to use a rope and bungees across the middle of the toppers.

While in Corpus Christi we had a forecast of nearly 50 MPH gusts, which is a bit more than I’m comfortable with, so I decided to try bracing the slide toppers.

I ordered some mini bungees and paracord for that purpose; I got crimson cord to match our coach:

Mini-bungees and paracord

To get the paracord over the top of the slides, I used the window awning pole:

Window awning pole

I tied a loop in the end of the cord, then temporarily taped it to the hook on the end of the pole:

Rope taped to pole

I attached the cord to the hydraulic beams underneath the slide via bungees, which let me adjust the tension as needed; it doesn’t need to be very tight, just enough to stop it flapping so much in the wind:

Cord attached to slide via bungees

(In the future I think I’ll get some tent rope tensioners to make that even more flexible.)

You can see the cord over the slide topper:

Cord

Cord

For the rear slides, which don’t have the hydraulic beams, the bungee is just hooked onto the bottom of the slide track:

Cord and bungee

Cord and bungee

This worked really well. The slide toppers still flapped a little when that wind arrived, but nowhere near as much as they would have without the bracing. I’ll definitely do this again for future high winds.

New mattress

Our Tiffin motorhome came with a fairly nice king-sized mattress on the bed, but it was a little uncomfortable.

As a Christmas present to ourselves, we purchased a new mattress. We purchased it online from MattressInsider.com; we got the “Luxury Gel Foam RV Mattress with Organic Cotton”.

Our old mattress was 72” wide by 75” long — what’s commonly called an “RV Short King”, being a bit narrower and shorter than a residential king (which is 76 x 80”). But the bed frame could support a 80” length; we used to use yoga blocks at the foot to keep it from sliding down. And I’m 6’1” tall, so a longer bed is better for me. So we ordered a 72 x 80” mattress aka a “RV King” size, 11.5” high.

Here’s a handy list of US mattress sizes (width x length), for reference:

  • California King: 72″ x 84″
  • RV California King: 72” x 84”
  • King: 76″ x 80″
  • RV King: 72” x 80”
  • RV Short King: 72” x 75”
  • Queen: 60″ x 80″
  • RV Short Queen: 60” x 75″
  • Full: 54″ x 75″
  • RV Three-Quarter: 48” x 75″
  • Twin XL: 38″ x 80″
  • Twin: 38″ x 75″

(There are other variations, too.)

Here’s our old mattress, with a topper in an attempt to make it a bit more comfortable:

Old mattress with topper

We had the new mattress shipped to Corpus Christi KOA. Unfortunately it arrived a week before we did, but they were very accommodating in storing it for us. Which was much appreciated, especially since their office was upstairs. When we checked in, a KOA maintenance guy helped cart it down to our coach:

KOA guy helping

Using the ADA wheelchair lift to get it downstairs:

ADA lift

Our old mattress; it was subsequently picked up by a local junk removal company, that said they’d donate it to a local charity:

Old mattress

The bed base has a split, as it can tilt the head upwards. The whole bed slides out from the wall at a press of a button, too, which makes it much easier to make the bed:

Bed base

If you peek in the gap, you can see a bunch of wires below the bed:

Gap

Wires

We also got a Hypervent Aire-Flow moisture barrier from MattressInsider, to put below the mattress; it is supposed to provide better air flow to help protect the mattress; probably not needed in our situation, but can’t hurt:

Moisture vent material

Moisture vent material

The new mattress box:

Mattress box

Mattress

Mattress

Preparing to unwrap the mattress:

Mattress

Once released from the multi-layer plastic wrap, it very quickly expanded to its full size:

Mattress

Finally, we also got a zippered mattress protector to enclose the mattress:

Mattress protector

We are enjoying the increased comfort of this new mattress.