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JimK-NY

NY

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Posted: 03/23/23 11:26am Link  |  Quote  |  Print  |  Notify Moderator

ReneeG wrote:



Our tank is directly below our shower. We easily collect a gallon before the water gets hot.


That does not seem possible. Supply lines just don't hold much water. RV supply lines are almost always PEX plastic which does not pull much heat out of the water. I think I would start by looking at the plumbing and try to understand how a gallon of cold water could be in the supply lines.

2oldman

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Posted: 03/23/23 11:59am Link  |  Quote  |  Print  |  Notify Moderator

JimK-NY wrote:

ReneeG wrote:

Our tank is directly below our shower. We easily collect a gallon before the water gets hot.
That does not seem possible.
No, it doesn't.

My showerhead already has a water saver.. a valve that only lets a trickle flow when you want it to.

Latner

Indiana

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Posted: 03/23/23 12:54pm Link  |  Quote  |  Print  |  Notify Moderator

Oxygenics shower head

ReneeG

Meridian, Idaho

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Posted: 03/23/23 01:38pm Link  |  Quote  |  Print  |  Notify Moderator

2oldman wrote:

JimK-NY wrote:

ReneeG wrote:

Our tank is directly below our shower. We easily collect a gallon before the water gets hot.
That does not seem possible.
No, it doesn't.

My showerhead already has a water saver.. a valve that only lets a trickle flow when you want it to.


We have a watersaver shower head too. Could be less than a gallon, but not by much. Our water heater is 12 gal.


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ewarnerusa

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Posted: 03/23/23 02:00pm Link  |  Quote  |  Print  |  Notify Moderator

I've got this video bookmarked as a "someday" project. It is a DIY take on the ShowerMiser product linked to earlier.
RV Recirculating Hot Water Line Don't Waste Water Complete Installation


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profdant139

Southern California

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Posted: 03/23/23 05:45pm Link  |  Quote  |  Print  |  Notify Moderator

For what it is worth, here is how we save water while waiting for the hot water to arrive: Every night, DW is the first to shower. She takes a four-cup plastic measuring cup into the shower. She runs water from the hot water faucet into the measuring cup until the water coming from the faucet is warm enough.

The measuring cup usually contains about two cups by the time she decides the water is warm enough.

Then, she showers. (And yes, these are very serious Navy showers -- we mostly boondock.)

When she is ready for a final rinse, she adds a little hot water to the measuring cup and uses the warm water for rinsing.

Then it is my turn to shower. The water in the hose is already warm, so I don't need to use a measuring cup.

Someone mentioned Oxygenics. We got one for the trailer and found that it uses a little too much water -- about 3 quarts per minute, on a minimum setting. We found that a cheap little low flow showerhead consumes two quarts per minute on a minimum setting.

The Oxygenics is now in our S&B house -- it's great.


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ReneeG

Meridian, Idaho

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Posted: 03/23/23 08:39pm Link  |  Quote  |  Print  |  Notify Moderator

profdant139 wrote:

For what it is worth, here is how we save water while waiting for the hot water to arrive: Every night, DW is the first to shower. She takes a four-cup plastic measuring cup into the shower. She runs water from the hot water faucet into the measuring cup until the water coming from the faucet is warm enough.

The measuring cup usually contains about two cups by the time she decides the water is warm enough.

Then, she showers. (And yes, these are very serious Navy showers -- we mostly boondock.)

When she is ready for a final rinse, she adds a little hot water to the measuring cup and uses the warm water for rinsing.

Then it is my turn to shower. The water in the hose is already warm, so I don't need to use a measuring cup.

Someone mentioned Oxygenics. We got one for the trailer and found that it uses a little too much water -- about 3 quarts per minute, on a minimum setting. We found that a cheap little low flow showerhead consumes two quarts per minute on a minimum setting.

The Oxygenics is now in our S&B house -- it's great.


Thanks for the feedback on tbe Oxygenics and the great idea on the meaduring cup!

JimK-NY

NY

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Posted: 03/23/23 09:45pm Link  |  Quote  |  Print  |  Notify Moderator

profdant139 wrote:

For what it is worth, here is how we save water while waiting for the hot water to arrive: Every night, DW is the first to shower. She takes a four-cup plastic measuring cup into the shower. She runs water from the hot water faucet into the measuring cup until the water coming from the faucet is warm enough.

The measuring cup usually contains about two cups by the time she decides the water is warm enough.

Then, she showers. (And yes, these are very serious Navy showers -- we mostly boondock.)

When she is ready for a final rinse, she adds a little hot water to the measuring cup and uses the warm water for rinsing.

Then it is my turn to shower. The water in the hose is already warm, so I don't need to use a measuring cup.

Someone mentioned Oxygenics. We got one for the trailer and found that it uses a little too much water -- about 3 quarts per minute, on a minimum setting. We found that a cheap little low flow showerhead consumes two quarts per minute on a minimum setting.

The Oxygenics is now in our S&B house -- it's great.


I also use up a couple of cups of water waiting for the HW to flow out of the showerhead. I just don't bother trying to save that small amount. Being careful with the rest of the shower, being careful with washing and rinsing dishes and even being careful on brushing teeth can save even more water. I can only commend your efforts but they go a bit beyond what I see as significant.

I also agree on the Oxygenics. Those who think it works well in an RV are probably using hookups. It is designed to run at about a gallon per minute, which is my entire consumption of water for a shower.

JKJavelin

Milwaukee, WI

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Posted: 03/23/23 09:55pm Link  |  Quote  |  Print  |  Notify Moderator

FWIW, I did a little testing with our Oxygenics showerhead a couple years ago and found that keeping the flow as low as possible but still getting a spray effect, it would consume .6 gallons per minute.
Now, as far as toilets go, I read about people saying "use plenty of water " for the black tank, as well as many saying that they can go 2 weeks before dumping the black tank. How much should you put in the toilet between flushes?? We put about a quart of water in (I've measured it!). Too much? Not enough? With a 41 gallon tank, we can go a week max before the dreaded burp.
JK


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JimK-NY

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Posted: 03/24/23 06:48am Link  |  Quote  |  Print  |  Notify Moderator

JKJavelin wrote:

FWIW, I did a little testing with our Oxygenics showerhead a couple years ago and found that keeping the flow as low as possible but still getting a spray effect, it would consume .6 gallons per minute.
Now, as far as toilets go, I read about people saying "use plenty of water " for the black tank, as well as many saying that they can go 2 weeks before dumping the black tank. How much should you put in the toilet between flushes?? We put about a quart of water in (I've measured it!). Too much? Not enough? With a 41 gallon tank, we can go a week max before the dreaded burp.
JK


You are in a whole different category from some of us who are concerned about saving a few cups of water. For example I am trying to get by for a week or so with a 30 gallon FW tank. It seems that you use more than that just flushing your toilet.

My RV is more boondocking oriented. It has a built in cassette toilet. The water tank for flushing is a separate 6 gallon tank. Flushing is very efficient and only requires a very small amount of water from a high velocity jet. Flushing uses maybe 2 gallons a week.

Even with a built in toilet you should not need a lot of water to keep the system working. Even a very minimal amount of flush water should work. Chemicals and sloshing during travel should avoid any build up and most RVs also allow you to use GW when dumping to break up any remaining sediment.

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