Water pressure

[Tootalltechie]

I'm planning my water system. RV systems have a pump that runs when the tap is turned on. Residential well systems have a pressure tank and pump that is controlled by a pressure switch.
Question what do most people do KISS or complex / less pump run time constant pressure?

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[superdave]

Shurflo RV Fresh Water Pump New 12 Volt 3 5 GPM 45 PSI motorhome Caravan New | eBay

[Tootalltechie]

I guess I wasn't clear. Do people use a "diaphragm" pressure holding tank? What size? I'm thinking of using a 10 gallon pressure tank and a 55 gallon fresh water tank.
BTW superdave that's a great price for the shurflo pump.

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[milkmania]

Originally Posted by Tootalltechie

I guess I wasn't clear. Do people use a "diaphragm" pressure holding tank? What size? I'm thinking of using a 10 gallon pressure tank and a 55 gallon fresh water tank.
BTW superdave that's a great price for the shurflo pump.

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Are you going off grid with solar? And you're concerned about your battery consumption... If not, I'd think the shurflow on eBay would suit every need you'd have!

How are you heating your shower water?
I know a guy that catches rainwater in a blue 55gal. drum, and uses a 12v pump (off brand from farm supply) to go to his Eccotemp and he claims it works great.

[Tootalltechie]

I'm designing the bus for off grid and RVing. I was thinking of adding solar hot water generation as well but have not thought that far ahead yet.

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[Tango]

It's a good idea to either install or carry a portable water pressure regulator for use when connected to city or campground supplies. They can be all over the place and easily over pressure your system.

[Tootalltechie]

Originally Posted by Tango

It's a good idea to either install or carry a portable water pressure regulator for use when connected to city or campground supplies. They can be all over the place and easily over pressure your system.

Totally agree

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[milkmania]

Originally Posted by Tango

It's a good idea to either install or carry a portable water pressure regulator for use when connected to city or campground supplies. They can be all over the place and easily over pressure your system.

From previous experience... Get the brass one for the water hose!

Alternately, I used one that was designed for PEX plumbing for the cabin, worked flawlessly!




https://www.google.com/shopping/prod...FZKGaQodq7wC_w

[turf]

you don't need a pressure tank. the pumps are called "demand" pumps and have a pressure switch built into the pump, so the pump maintains 40-60 psi in the system.
the hot water side can use an expansion tank.

[Tootalltechie]

I have seen too many of those "demand" pumps getting replaced. That's why I'm thinking the way I am. An expansion tank on the hot side is a good idea, worked into a solar hot water heater. With a tank less hot water heater not sure if one is needed.

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[Elma]

I have a shur flow that I pulled from a camp trailer. It works fine. A pressure tank would be nice when using small bits of water but not worth the added work and expense imo