Pump(s) and filter for overflow pool.

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Pump(s) and filter for overflow pool.

Postby Breizh29 » Sat Mar 04, 2017 12:50 pm

Hello everyone,

I have a little trouble calculating my needs in pump(s) and filter of my overflow swimming pool under construction. :roll:

I would like mirror pool owners to share their configuration if possible and indicate whether they are experiencing problems or not.

I thank you in advance :wink:
Breizh29
 
Posts: 83
Joined: Mon Jun 18, 2012 2:03 am

Re: Pump(s) and filter for overflow pool.

Postby Klondyke » Wed Mar 08, 2017 7:54 pm

My experience:

There are diagrams and clever schemes for dimensioning of pumps and filters. The pump capacity (as printed on its label is further reduced by the resistance of the pipes (diameter and length, number of elbows), check (return) valves, outlets jets, number of sucking intakes, resistance of the sand filter, height position of the pump. Different pressure conditions (and so the flow) are when inlet to the pump only from the pool bottom or only from the OF tank, or from skimmer(s).

For my 50,000 m3 pool I have bought my filter in GH (7,500B) and the pump (7,500B) at a (not pool) pump specialist (GH also have a similar pump). The pump label shows a range of 4 - 24 m3/h (with max H 16m), 1.1 kW (1.5HP), it gives me some 12 m3/h, roughly checking, I should better have the piping with a larger diameter.

I do not think that I would fare better when buying at a pool specialist for some 5fold price. The pump is running 4 - 6 hours every day, keeping the water clear without much chemical throughout the year. With a smaller pump the water exchange can be achieved by a prolonged filtering. The minimum and maximum of the necessary filtering time can be tested, whether a difference will be apparent.
Klondyke
 
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Joined: Tue Jun 17, 2014 10:40 pm

Re: Pump(s) and filter for overflow pool.

Postby Breizh29 » Thu Mar 09, 2017 8:16 am

Klondyke wrote:My experience:

There are diagrams and clever schemes for dimensioning of pumps and filters. .........

Please Klondyke, where can I find these diagrams and clever schemes?
Breizh29
 
Posts: 83
Joined: Mon Jun 18, 2012 2:03 am

Re: Pump(s) and filter for overflow pool.

Postby Klondyke » Fri Mar 10, 2017 12:52 pm

Breizh29 wrote:
Klondyke wrote:My experience:

There are diagrams and clever schemes for dimensioning of pumps and filters. .........

Please Klondyke, where can I find these diagrams and clever schemes?


I used to see it when browsing sites dealing with swimming pools and pumps. Try to google.
Klondyke
 
Posts: 217
Joined: Tue Jun 17, 2014 10:40 pm


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