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Topic: How to prevent cold water blasts during Navy showers (Read 354 times) previous topic - next topic
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How to prevent cold water blasts during Navy showers
I was looking for something else and stumbled upon this and thought it would be of interest to others.

When taking the Navy showers and turning it back on after it was off (while soaping up), the water is typically cold for a few seconds.  This guy decided to fix it so the temperature doesn't change while the water is off during your Navy shower.  I am putting this on my todo list.

fixing the cold water blast in your rv shower
Jane & Scott
Currently have a 1989 TK  LD we did a lot of upgrades on.
Bigfoot 25RQ Twin on order with early summer 2024 ETA

Our smartphone autocorrects into very poor English.
 We disclaim the illusion of ignorance this creates as we have enough ignorance we rightly claim.
Re: How to prevent cold water blasts during Navy showers
Reply #1 –
How about do as the Red Rover Roadtrek does?   Get one of those indoor / outdoor thermometers.  Put the outdoor remote  sensor under the insulation of the hot water heaternext to the hot water tank.   Start the water heater.  When the outdoor thermometer reaches say 100F, turn the water heater off.  Use only the hot water valve to take a shower.  The first cold is expected from the hot water line to shower.  When the second cold comes your 6 gallon navy shower is over.  Adjust the off temperature as needed to get the ideal water temperature for your 6 gallon Navy shower.
Rodney
1988 Mid Bath
Re: How to prevent cold water blasts during Navy showers
Reply #2 –
Quote from: rodneyhelfrich  - 
How about do as the Red Rover Roadtrek does?   Get one of those indoor / outdoor thermometers.  Put the outdoor remote  sensor under the insulation of the hot water heaternext to the hot water tank.   Start the water heater.  When the outdoor thermometer reaches say 100F, turn the water heater off.  Use only the hot water valve to take a shower.  The first cold is expected from the hot water line to shower.  When the second cold comes your 6 gallon navy shower is over.  Adjust the off temperature as needed to get the ideal water temperature for your 6 gallon Navy shower.


Andy Baird has info on just this issue here. The one-gallon shower

Jim
Re: How to prevent cold water blasts during Navy showers
Reply #3 –
If you use a switch/valve on the hand-held sprayer (instead of the hot/cold knobs) then the temp is the same from beginning (post-stabilization) to end, unless you wait 10 minutes between soap and rinse...  Setting the WH to 100 or so also works, per post referenced above.
2000 Front Lounge
Re: How to prevent cold water blasts during Navy showers
Reply #4 –
When taking the Navy showers and turning it back on after it was off (while soaping up), the water is typically cold for a few seconds.

But that's the fun of taking a Navy shower!  ;D
~Ex-sailor Greg who's taken lots of Navy showers
Greg & Victoria
2017 Mid-Bath  “Nocona” towing a manual 2015 Forester
Previously a 1985 TK
SKP #61264
Re: How to prevent cold water blasts during Navy showers
Reply #5 –
Blast of wrong temp water is due to cutting off flow. Leave the flow just ever so slightly on whilst working the tropical regions. This is why the control on the Oxygenics Bodyspa never fully goes off - just a low flow.
1996 Twin King
Re: How to prevent cold water blasts during Navy showers
Reply #6 –
Matt (and others),

Yes, the video in the original post is pre venting that cold water blast when the flow is cut off at the shower head in the middle of the shower.

I have heard of the oxygenics shower head - what is the low flow it does when turned off (gpm)? We boondock and leaving water flowing when not using it even for a minute is not our first choice but if very small ...

Jane

Sent from Yahoo Mail for iPhone
Jane & Scott
Currently have a 1989 TK  LD we did a lot of upgrades on.
Bigfoot 25RQ Twin on order with early summer 2024 ETA

Our smartphone autocorrects into very poor English.
 We disclaim the illusion of ignorance this creates as we have enough ignorance we rightly claim.
Re: How to prevent cold water blasts during Navy showers
Reply #7 –
I should have checked the original post more clearly - I thought it was a question. I did a GPM calc on my Oxy for full flow but for low flow mode have not done so. I suspect it would be less than a pint per minute but would need to check. Based on the gigabytes of discussion on it on other forums - the benefit of the low flow v. the disadvantage of water loss - the benefit far outweighed the negative. My experience echos that. My bigger problem is my fellow campers with long hair who just HAVE to wash their hair. Such entitlement!  :D
1996 Twin King
Re: How to prevent cold water blasts during Navy showers
Reply #8 –
Quote from: rodneyhelfrich  - 
Get one of those indoor / outdoor thermometers.  Put the outdoor remote  sensor under the insulation of the hot water heaternext to the hot water tank.   Start the water heater.  When the outdoor thermometer reaches say 100F, turn the water heater off.  Use only the hot water valve to take a shower.

Many of us have been doing this for years - an aquarium thermometer is ideal for this. Saves water and makes for a comfortable shower with minimum fuss and wastage of propane. Set the thermo to alarm at 100F, and turn the WH off.

Steve
2004 FL
2013 Honda Fit