House water pressure - volume

Something to think about.

I recently changed out all my 3/4" supply lines from the 2" manifold in the trailer to 1" lines to the machines, have a 2" dump valve now and a 1" dump valve for filling buckets or washing hands right by the 2" dump valve.

When filling buckets, it fills them more than twice as fast as when I was using the 3/4" line. You would not think that it would make that much of a difference but it made a huge difference!

I never believed in the 1" lines to the machines but went ahead and changed out everything to the larger lines and things are running smooth but the biggest change is when emptying the tank and filling buckets.

Something else to think about is your supply hoses and reels, there are usually plenty of restrictions there that you don't even see, especially with those brass swivels on the hose reels.
 
Connor, if I blow air through my TSF2021 (1700 rpm ~ 8gpm) and inlet lines to protect against freezing temporarily it will not pull from a half full 500 gallon tank, it must be pressure primed ,.... it has 1" line to one inlet. All the air must be out of the pump in order for it to effectively use its lift capacity (rated at 9 hg max lift).

I agree with the ideas Chris mentioned, about the filtering (with that type of filter) before entering the buffer tank , the size of the inlet line to the pump and the height of the tank above inlet to pump.

Also looking at all the connections to the tank, I was wondering if enough air can enter fast enough as to not create any type of vacuum when the pw pump is running or pressure when being filled by the inlet supply hose to buffer tank.
 
That brings up a good point Nigel, those caps on the tank can tighten a lot but I don't know if they are air-tight. I would not tighten it all the way just to be safe or drill a small hole in the black cap for air. When full a little bit might splash out when driving but not enough to worry about unless you want to keep that cap a little bit loose all the time.

If that cap is air-tight, that could be causing a little bit of the problem also.
 
To answer the original question you should be fine most homes will put out in excess of 6-8 gpm as a standard. Where you will run into problems is if the home has a bad well pump or real clogged pipes. If running higher gpm you may want to add a buffer tank for makeup water in that case.

If you have enough head pressure just about any pump will draw from a tank but you may have to force the air out of the system first. As packings wear they loose their ability to create a tight seal and may not create as strong of a vacuum to suck the water in. If they are really worn they will even suck air and never self prime. Usually if the water level is above the pump this will remedy the situation but if you are drawing from a tank you may want to double feed both sides of the inlet for best results. Once the pump and remaining system is full of water you should not have an issue unless the unit needs some repair or is sucking in some air.
 
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