Question about Hayward SAND FILTER, PRO SERIES

1 Answer

I have a S21OT sand filter that is running off the pressure guage and flowing sand back into the pool. The laterals are fine, I changed the sand, backwashed for about two minutes, and rinsed, The pressure is still the same. Any suggestions ?

Posted by on

  • Johnny Dingl Apr 24, 2011

    Is there any chance that when you changed you sand you happened to grab like playbox sand as opposed to the more coarsely ground pool grade sand. Outside of that I would check the standpipe and lateral assembly again because those are pretty much the only two causes. Also when you put the new sand in, might you forgotten to fill the filter tank about halfway with water or maybe even gotten some sand down the center pipe?

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 640 Answers

Usually sand blowing back into the pool is either cracked laterals, a cracked hub assembly (what the laterals screw into) or a bad spider gasket is wrong with pool filters. If you are certain that the laterals and hub are not cracked then I would try replacing the spider gasket.

Posted on Apr 25, 2011

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

My hayward sand filter pool guage is registering 0 although the pool seems to be running fine. Guage was just replaced last summer.


  • Those spring type gauges break constantly, most likely broken again, they cost a couple bucks extra but liquid filled are much more durable, just don't forget to remove if you live where it freezes.

May 24, 2014 | Hayward SAND FILTER, PRO SERIES

1 Answer

Pressure guage reading 25-35 upon opening pool. backwashing made no difference.


if the pressure on the gauge does not lower after backwashing you may need to change the sand in the filter.
This happens when the sand is so compacted that it is not able to be moved around to clean the debris out when back washing.
Rod @ US Parts Center

May 12, 2013 | Hayward SAND FILTER, PRO SERIES

4 Answers

When backwashing...sand discharges out backwash hose..


A little sand in backwash is not uncommon. Many packaged sand filter systems use pumps whose flow rates greatly exceed the flow capacity of the filter.(the more horsepower the better, right? - Wrong) If this occurs only during back flush the the pump is too strong or the sand level is above the beginning of the rounded top of tank. The sand level will eventually correct itself.

Aug 10, 2012 | Hayward SAND FILTER, PRO SERIES

1 Answer

Just installed a new filter and 1 month old sand from defective filter. Removed the cardboard cover used to prevent sand from going into pipe. Piped everything together and no leaks. When I try to run the...


Too much sand or wrong type of sand in the tank are two possibilities; should tell you on the side of the label how much sand to put in but generally it fills to about half way up the tank body.

Are you getting sand back in the pool at all? If not it is unlikely the sand is the issue since too small a grain would pass thru the laterals and get to the pool.

Have you used any clarifiers in the water? Over-dosing with a clarifier can literally turn the top of the sand bed into mortar impeding the flow of water.

John

Jul 09, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

I have a swimpro sand filter it is 5 yrs old and this season when i started it up it doesn't seem to have very good pressure i have backwashed it three times and it wont even run my pool cleaner no...


If there is not much pressure, the problem is with the circulation system. Probably the pump.
When a sand bed gets old the pressure goes up on the guage, but the filter doesnt do much. When there is a lack of pressure, its due to a problem with the water flow. Usually a clogged impeller, strainer basket, or skimmer basket.

The most common solution for a loss of pressure is to dissasemble the wet end of the pump, clean out the impeller, and replace all o-rings and seals, including the shaft seal. This will revitalize the performance of your pump.

Jun 02, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

My pro series plus, model 360sx was filtering sand back into the pool. Thought we had a broken lateral. After removing all sand and inspecting, can't find any broken or cracked pieces and are at a loss why...


As far as the pressure gauge goes on these pool filters, those work for a short amount of time then they go bad. I would have to ask you two questions. Do you have good strong suction from the skimmer? Do you have a strong flow from the return? If the answer to both of these questions is yes then I don't think you have a problem other than a bad pressure gauge. Also you said the pressure is the same but you did not mention if it is still spitting out sand. If it is and the laterals are all ok I would recommend replacing the spider gasket.

Apr 11, 2011 | Hayward Pro Series Sand Filter -36" Tank

1 Answer

We had a lot of rain and mud got in the pool. i vacuumed the pool twice and the third time i vacuumed it, i put the filter on "waste" instead of keeping it on "filter". it cleaned up very well that way...


You may have to change the sand from to much mud. this requires removing the valve from the top and syphoning the sand with a "sand changer" then removing the latterals from the bottom.( they unscrew from the hub inside the filter and cleaning them. Return the correct the amount of sand covering the tube shaft that connects the valve to the hub sot he sand doesnot clog the flow again. Return valve to the top and it should flow freely again.

The Pool Tech

Aug 07, 2010 | Hayward SAND FILTER, PRO SERIES

2 Answers

How to change sand in Hayward S-200 Sand filter


hayward S-180 filter takes 150lbs, S-210 takes 200lbs not familur with the S-200. To change sand you have to remove the vari flow valve on top. You can either unplumb the filter and roll it over on its side and try washing the sand out or try scooping it out upright. Whatever you do dont damage the laterals on the bottom of the filter. When refilling with sand you want to make sure all the laterals are undamaged and in the down position. I always fill the filter half full of water to keep the sand from damaging the laterals while re-filling the filter with sand. Make sure you use pool filter sand and not play sand!

Apr 27, 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...

Not finding what you are looking for?
Hayward SAND FILTER, PRO SERIES Logo

284 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hayward Pool & Spa Experts

Jay Finke
Jay Finke

Level 3 Expert

1338 Answers

Bill Jordan

Level 2 Expert

372 Answers

john h

Level 3 Expert

12104 Answers

Are you a Hayward Pool and Spa Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...