?     Asked on 3/16/2015by Roger

A C100S Single Element Filter was installed in place of DE filter system. The C100S has no plumbing or valves to accommodate backflushing the tank or pumping down the pool water level in case of rain over flow. Is there something on this unit that I am not aware of -- in Florida it is imperative to have a way to pump down the pool in case of heavy rainfall.
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A  Answered on 3/17/2015 by InyoPools Product Specialist Hector F.

On this model filter there is a drain plug on the bottom side of the unit that you can remove and add a water spicket to. You can then attach a water hose to that and extend that out to where you would like to drain the water.
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?     Asked on 5/16/2015by Greg Silvestri

what size pool will this filter accommodate?
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A  Answered on 5/16/2015 by InyoPools Product Specialist Patrick P.

I would recommend this filter on pools up to 25,000 gallons.
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?     Asked on 3/20/2016by wayne

my pool is 18ft x36ft deep end 9ft shallow 4ft i have a 1 and 1half hp pump will the c100s work well in my pool i am replacing my hayward ec65
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A  Answered on 3/22/2016 by InyoPools Product Specialist Lennox H.

Hi Wayne, This unit will work good but the C150S will work better.It is always better to go one size up from when getting a filter.
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?     Asked on 5/22/2016by Kevin

I have a 12,000 gallon inground pool with a 1hp pump. What size filter do you recommend?
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A  Answered on 5/23/2016 by InyoPools Product Specialist Robert M.

Hello Kevin - The Hayward C100S would be the correct size for your pump and pool size.
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?     Asked on 6/1/2016by Inyo Visitor

Would 50-60 GPM to little flow for this filter?
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A  Answered on 6/7/2016 by InyoPools Product Specialist Lennox H.

Hi, A flow rate of 50-60 gpm would be great for this filter. When the actual flow rate is lower to the max filter's flow rate the filter will perform better and last longer.
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?     Asked on 4/6/2019by Joe Cobian

I have +/- 10,000 gallons inground oval swimming pool. And I need a new filter. Could you advise me if the Hayward 100 will be ok my pool size. Thank you.
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A  Answered on 4/6/2019 by InyoPools Product Specialist Lennox H.

Hi, Joe. This Hayward Cartridge Filter - C100S will be sufficient for your pool if your pump flow rate does not exceed 100 GPM. To determine your pumps' flow rate, use our How to Size a Pool Pump guide. 
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?     Asked on 3/16/2020by John Harvey

On the Hayward C150 Swim Clear Pumps is the intake in the upper position and exit at the lower position on the pump body?
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A  Answered on 3/16/2020 by InyoPools Product Specialist Lennox H.

Hi, John. Yes, the dirty water enters the filter from the pump to the upper ports and the clean water leaves the filter through the lower port of the filter. 
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