I am working on a project to replace (and relocate) my pressure tank, pump, hot water heater, and water softener. I've been looking at different pumps and pressure tank combinations but am getting very confused at what I need. We have a shallow well, so I think we need a jet pump. I can't really get to the existing (and still working) pump right now to compare, but I'm pretty sure it is a 220V hook-up so I'm thinking it has to be at least 1/2HP? The existing, and failing pressure tank is pretty small, but that may have been because they couldn't get a bigger tank into the crawl space? I'd like to replace it all without oversizing or undersizing.
We have two adults and two teenagers living here, 3.5 baths, which no more than two are used at a time, most of the time. Standard kitchen arrangement, ice maker, dishwasher, etc. New, high efficiency, low water consumption washer.
Anyway, based on the above, can somebody give me a ballpark on a good pump / pressure tank size combination?
Re: Pump and pressure tank sizing
[re: jimbrown]
12/09/04 11:06 AM
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There is little danger of oversizing the pressure tank. You can go so large as to not be cost effective but as far as functionality is concerned a huge OVERKILL tank would still give satisfactory service and not cause any problems to the rest of the system's components. As I gain experience, I tend to prefer larger pressure tanks. You can hook multiple tanks in parallel (they don't have to be the same size) to get the effect of a larger tank and still fit them in your restricted space.
Larger tank capacities are gentler on your pump as they reduce short cycling. Multiple starts and stops are much harder on pumps than a good long run.
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