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Old 07-21-2011, 07:19 PM   #1
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Water pressure

Hello everyone,

I have a question about water pressure.

If I am attached to city water & my bypass valve is closed I get X amount of pressure.
I get more if I engage the water pump.

Is this because I am using water from my water tank along with city water or am I just increasing the city water pressure via the pump and not evacuating any water from my tank?

Regards,

Gene
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Old 07-21-2011, 07:46 PM   #2
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When I use the pressure regulator, unfortunately, the water volume is also choked. So I often use the water pump to supplement the water volume. I honestly don't know whether it is using some water from the tank, but would think logical it would be adding water to increase the volume.

There are better regulators which don't choke off the flow quite so much. Try searching water regulators on IRV2. There have been discussions on this subject.

Enjoy
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Old 07-21-2011, 07:54 PM   #3
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Thanks

I believe this as well but was just curious


Regards

Gene
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Old 07-21-2011, 08:12 PM   #4
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I had the same problem and went with a house pressure reducer from Watts (got it at Lowes) that has a much great flow volume while still allowing me to reduce pressure (I use a gauge and can adjust as needed). Works great for us.
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Old 07-21-2011, 08:19 PM   #5
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Your pump always draws water from the tank, whether city water is present or not. If the city pressure is near the pump pressure (about 45 psi), then some water will flow in form both sources, but if the pump pressure is substantially greater than the city pressure, all the water will come from the tank and none from the city source.
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Old 07-21-2011, 08:22 PM   #6
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There is probably a screen/washer where the potable water hose connects to the RV, and there may be another if you use a 90* or 45* adapter at that connection (i.e., a screen/washer between the adapter and the RV connection). Just a little debris that's brought in with the shore water supply can plug these screens enough to drop water pressure dramatically. Been there; done that.

Rusty
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Old 07-21-2011, 11:43 PM   #7
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Quote:
Originally Posted by Gary RVRoamer
Your pump always draws water from the tank, whether city water is present or not. If the city pressure is near the pump pressure (about 45 psi), then some water will flow in form both sources, but if the pump pressure is substantially greater than the city pressure, all the water will come from the tank and none from the city source.
Thanks for the info

Regards

Gene
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Old 07-22-2011, 08:38 AM   #8
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Should I be putting bleach into my water tank? If so how much? I
Have a 100 gallon tank

Regards,

Gene
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Old 07-22-2011, 09:11 AM   #9
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I beleive a lot of people confuse water pressure with volume. A lot of RV's have built in pressure regulators and the inline type that not only reduce pressure but also reduce volume. To solve this problem on my MH I removed the built in regulator and bought a whole house regulator at Lowes and hose fitting for 3/4" pipe. I also bought a whole house filter with hose fittings. I can now have the shower Volume I want.
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Old 07-22-2011, 09:11 AM   #10
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Quote:
Originally Posted by gwarshawsky View Post
Should I be putting bleach into my water tank? If so how much? I
Have a 100 gallon tank

Gene

I only use bleach to sanitize the water system of the rv. The procedure was outlined in my owners manual. I can't remember the ratio but on my unit I have a 100 gal. holding tank and use 12 oz. of bleach to a full tank.

I put the bleach in and fill the tank completely. After this turn on each spigot until the lines fill with this mixture. Make sure the water heater bypass is engaged as you don't want the mix in the hot water tank, also don't flush or run the mix through the toilet as it will cause the seals around the ball valve to fail in a short time. Don't ask how I found out about the toilet thing. Let this sit for a minimum of 4 hours then drain everything completely , refill, flush lines and drain again. Now your fresh water system is sanitized. I do this twice a year or after a long storage ( 2 months or more).

Be careful not to overdose the system with bleach or fail to flush it. Long ago on a 5th wheel I didn't know the procedure and dumped 2 gal of bleach in a 75 gal. tank forgot to by pass the hot water heater. after doing this I took a hot shower in the unit and came down with Chlorine poisoning an hour later. This makes for a quick way to fill your black tank in one night from both ends of your body, not a pretty thing at all.
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Old 07-22-2011, 09:56 AM   #11
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gwarshawsky already asked the bleach question in another thread on this board. To avoid duplication, please place answers there:
Chlorine bleach in Water tank
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