Question about Hayward SAND FILTER, PRO SERIES

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Hayward sand filter pressure builds up and return hose pops , the flow is good.

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Pressure should be at around 10 if its higher backwash to bring pressure down make sure you are seating hos clamp screw type over ring on return pipe

Posted on Jun 23, 2009

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1 Answer

While vacuming loses suction, sand filter pressure goes high


That increase is due to the filter loading up with debris. Is the pool unusually dirty? If there is a lot of dirt and silt in the pool use the "waste" setting on your backwash valve while vacuuming.
This allows the water to bypass the filter and go directly out the waste line. Keep an eye on your water level because you will be removing water from the pool and may have to add more.

Jun 30, 2013 | Hayward SAND FILTER, PRO SERIES

1 Answer

I have a hayward s200 sand filter and there is no pressure build-up to indicate a backwash is needed why


Do you have a strong flow of water back to pool? If so, perhaps pressure gauge is defective, pool water is relatively clean or particles are too fine to be captured except through multiple turnovers.

Aug 17, 2012 | Hayward SAND FILTER, PRO SERIES

1 Answer

Have a Hayward side mount pro series sand filter. Just recently the top lid has been popping off . Clamp appears to be in good shape. getting a pressure build up. Any thoughts on the cause/


A pressure build up, indicates several possibilities: 1. An obstruction or closed valve after the filter. 2. A clogged filter. If your filter is equipped with a multiport valve, try the valve setting in the backwash or bypass settings and see if the pressure changes. in the bypass setting, if the pressure remains, you have an obstruction or closed valve after the filter. if the backwash setting causes the pressure to drop, you either have a seriously clogged filter or an obstruction or closed valve after the filter. Assuming the sand is less than 2 years in place, have you checked the sand condition by digging down into the sand deep and checking to see how much debris is still in it? Sand filters DO NOT backwash everything out and will build up over time, requiring a complete dump, clean and refill with fresh filtration sand. If you take the time 1 or twice a season to manually stir up the sand and then backwash repeatedly after stirring it up, you can keep the sand in place for several more years of service. If you live in an area with hard water, it is not unusual to see the sand turn hard like concrete and have to be replced after only a couple years of use. This is typical when pool water pH is high and proper maintenance of the chemistry is neglected. As to the lid popping off, this means the pressure is excessive or the clamp is damaged.

Another point to consider if the condition of the pressure gage... is the reading accurate? In most cases the reading should never be higher than 20, ideally, down around 10-15PSI on clean. Any reading higher, indicates a dirty filter or obstruction after the filter.

Aug 11, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

What to do about 14 psi ?


The actual pressure depends on how clean the sand is, how well the pump is pumping, how clean the skimmer and pump baskets are. The rule of thumb would be when the filter pressure raises 8-10 psi above whatever the pressure was when you first started the filter with clean sand, clean baskets, good pump, When it reaches the 8-10 psi, it's time to backfulsh. A low pressue, with adequate return flow is what you really want. See Hayward's web site for a manual. http://www.haywardnet.com/inground/products/manuals.cfm

Jul 06, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

Sand filter is a week old,has been back wash twice but still having trouble,with kpa over 100


This can be a few different problems I will list them out for you:
  1. Make sure you are following the instructions in your Hayward owner’s manual. The sand bed may be clogged with mineral deposits or other material that will not backwash away. Some calcium based chlorines and other alternative sanitizers could cause a build-up in your sand bed. You may need to change the sand.
  2. Before you change the sand in you filter, try removing approximately 1” of the top layer of sand, and replace with the exact amount of sand removed. This sometimes rids the sand bed of the deposits clogging the filter.
  3. You may have to clean you filter system with a special filter cleaner, check with your Authorized Hayward dealer for proper procedures.
  4. Check to see if there is a closed or partially closed valve on the return piping.
  5. Your pump may be too small to provide sufficient flow for proper backwashing. Your filter will filter properly, but if your pump does not supply at least 60% of the filter’s designed flow rate, you filter will never backwash completely. Refer to the label on you filter for flow rate requirements. It may be necessary to upgrade the pump or downgrade the filter.
Your pump may also be exceeding the maximum allowed flow rate of you filter causing excessive backpressure. Check you Hayward filter owners guide or the operations label on you filter for the maximum allowed flow rate. You may have to downsize the impeller or pump to a lower horsepower or change the filter for one that will accommodate the pump’s flow rate. If allowed to continue, a pump that exceeds the recommended flow rate of a sand filter could cause the sand bed to channel (small channels in the sand that allow debris to pass unfiltered). This would cause debris to by-pass the filter.

Hope this helps you

Jan 02, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

Hayward sand filter not filtering small particles


You probably have too big of pump. It is pushing the finer stuff right back into pool. Try adding a clarifier. Don't backwash either until the pressure goes up.

Jul 30, 2009 | Hayward Pro Series 18" Above Ground Pool...

1 Answer

The water seems to be jumping out of the return jet?


Below is a copy of the users manual for these pool filters. It has a troubleshooting guide and several diagrams that should help you get the pressure problems solved. Hope this helps.

http://www.backyardcitypools.com/images/hayward/pro-series-manual.pdf

May 26, 2009 | Hayward SAND FILTER, PRO SERIES

2 Answers

Sand filter not catching little debris


Filter is being bypassed at backwash valve, due to poor spider gasket in valve, or there is a broken lateral in bottom of sand filter, causing debris to return to pool..

Feb 18, 2009 | Hayward Pro Series 18" Above Ground Pool...

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