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Posted by Sacramento Dave on June 2, 2006, 10:29 pm
>I have a 7,200 gallon in-ground fiberglass pool (12x20x4). There is 2"
> PVC plumbing to the pump (Hayward SP3020EE). The pump has a 2 HP motor.
> There is 1 1/2" PVC plumbing from the pump to the filter (Hayward
> C1100). The exit plumbing on the filter is 1 1/12" PVC which goes back
> to the pool. I acquired the pool and equipment used almost 6 years ago.
> The base of the filter system is now leaking and needs to be replaced.
> Based on the information I am finding around on the internet, I could
> downgrade to a C-250 and I would still be over the minimum requirement
> for a 7,200 gallon pool. The only thing that worries me is if there
> would be too much pressure from the pump for a smaller filter system. I
> have asked several people working at pool stores in the area. As soon
> as I let on that I currently have the C-1100, they start salivating and
> assure me that I should replace the equipment with at least the same
> size if not bigger. But I don't get a good feeling that their
> recommendations are based on something other than greed. Is there
> anyone out there that really understands the water pressure involved
> that can verify if a 2 HP motor will really cause too much pressure for
> the smaller filter system?
>
> Please Advise,
> Mr. Boning
>
I'm running a 1.5 Hp motor with a 450 sq.ft. filter area and the a 3/4 HP
pump for the Polaris. 16000 gal. pool.
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