Question about Hayward SAND FILTER, PRO SERIES

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I have a Hayward S310T filter. It's been running 24/7 for over a month. The water does not appear to be clear, even after floccing. How do I tell if the water is being filtered or if the filter is working correctly?

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You will not get the fine particulate to filter if you backwash too frequently. The proper way to know when to backwash is by watching the pressure guage. I tell my customers to backwash after pressure rises 8-10 psi from where it started after thier last thurough backwash.
You should also take a water sample to your local pool store with a quality test lab as there are things such as phosphates, nitrates, ammonia, etc that could be effecting the water that you can not test for properly with a home test kit.

Posted on Mar 23, 2015

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Backwash the filter. If the water coming out of the backwash line is not dirty you need a sand change. If the water is dirty you need to continue let the water filter and back washing once a week. Also make sure the six way is on filter and not recirculate

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Posted on Mar 07, 2015

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Posted on Jan 02, 2017

  • 61 Answers

SOURCE: Cannot put D.E. filter grids in correct order

Yes it is very tricky...i always start with the small one because it goes where the pipe goes down. try putting the bottom bracket into the filter and starting with the small one and see what you come up with.

Posted on Apr 04, 2009

  • 6 Answers

SOURCE: replaced sand now filter isnt working

if u used play sand, or any other type of sand thats NOT pool filter sand, that could be the problem. also if there is too much sand or too little sand that could also cause this.

Posted on Jun 09, 2009

john224
  • 1378 Answers

SOURCE: Problem with vari-flo multipoer 1.5 and Hayward DE fiilter

You need a rebuild kit for the valve and possible a sand change. Sand should be changed ever 3 - 5 years or so depending on overall pool conditions.

The gasket inside the valve is out of place and therefore allowing water to leak out the waste port. Use a gokit to replace all the gasket/orings and you should stop the leak.

If the flow is still bad, inspect the sand and change it if necessary.

Posted on Jun 26, 2009

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SOURCE: Do I need a new sand filter psi gauge?

It wouldn't hurt to replace the gauge every few years, since it makes contact with heavily chlorinated water. They are available for less than $10.

Posted on Jul 07, 2009

john224
  • 1378 Answers

SOURCE: manual for s310t sand filter

Try this one.

Posted on Aug 12, 2009

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Related Questions:

1 Answer

What size pmp do you need to run with a s310t filters310t


check size of pool and filter for flow rate and change over and plumbing size and distance from pool filter is

Aug 17, 2013 | Hayward SAND FILTER, PRO SERIES

1 Answer

Hayward sand filter


Reference your pressure gauge as the 12:00 position. Going clockwise-
12:00 is Filter, normal running position
2:00 is Waste, water goes from pool and exits the waste line, bypassing filter.
4:00 is Closed, used only when servicing equipment
6:00 is Backwash, reverses water through the filter and goes out the waste line.
8:00 is Recirculate, water bypasses filter and returns to pool.
10:00 is Rinse, water goes through filter and exits to waste line, used briefly after backwashing to clear sediment from filter.
Note that the "pointer," not the handle that you grab, indicates which setting you are on.

May 19, 2013 | Pool & Spa

1 Answer

Water is greenish brown


run run run that pump 24/7 clean clean that filter check ph first then balance other chems it will take awhile with well water to clear

Jul 14, 2017 | Intex Automatic Salt Water System for ...

1 Answer

Sand filter gauge reads zero. have good circulation, however the pool is still green and not clearing up.


Green could be metal or algae. Remove algae with algae removing product. Remove metal with a sequestering agent. I suggest you try the metal first. Follow all package directions. Run your filter 24/7 until this clears up. This may take up to a week. You may want to use a flocking agent in your sand filter. Is your gauge broken? Are you CERTAIN you have water circulation? Have you checked your sand in your filter? Your impeller is intact and working?

Let me know about your progress.

Oct 19, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

Pool won't clear up I have shocked 3 x


There is much you dont say inthis question.

How big is your pool? Have you removed the metal from the water? (Sequestering agent will remove) Have you used a flocking agent in the filter? How long do you run the filter? Ho long have you had this problem?

Run the filter longer, there is nothing wrong with 24/7. A sequestering agent will get the metal, but your chlorine should be 1 or 2 ppm. A filter flocking agent will increase the pressure in your system until you back wash ... this agent will help get rid of the solids in the water.

What about your chemestry? Alkalinity should be set first between 80 and 120 with 100 being the goal. The pH should then be adjusted for a number between 7.2 and 7.8 with 7.4 being the goal. Gunnite pool? Calcium should be around 250 ppm.

Let me know if you need more information and how you are progressing.

Thanks for yor interest in FixYa.com

Jul 28, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

I have a hayward S310T filter, cleaned 2 months ago sand replaced with "glass" and all ok. This week i did a backwash and rinse and vave put back to filter and now the filter empties via the...


Remove the screws holding the top of the valve into the valve body. Once removed lift the handle/cover assembly out. Depending on the model and age of the valve you will find a gasket of some sorts that sits between the portion you just removed and a surface or groove in the body. Reseat the gasket if you can for a quick bandaid then get a replacement part to fix it permanently.

John

Feb 08, 2011 | Hayward S310t Sand Filter with 30 " Tank...

1 Answer

I get brown stuff coming back into the pool when I turn on the pump in filter mode. This goes on for about 30 seconds and then clears off, but the water remains cloudy even after long period of running...


You have a multi-port valve? There is a 'rinse' mode on the handle. After you back-wash, move the control to 'rinse' and run for 30 seconds or so ... them return it to filter mode. Always shut the pump off enwh changing the valve settings - ALWAYS wait at least 10 seconds when switching the pump from off to on. Always move the handle in a clock-wise direction.

I suggest you run your filter for longer periods each day, maybe even 24 hours until it gets cleared up. Have you removed the metal from your water using a sequestering agent? Use according to package directions. Balance your water. Keep the CL around 5 ppm, the pH at 7.4, the calcuim around 250, the TA at 100. Cyanuric acid should be betrween 60 and 100 but no more. Use "super blue" in your pool according to package directions. Have you checked the Combied Clorine? (The difference between Free CL and Total CL = Combined CL)

Jul 24, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

I have hayward sand filter model 244T. I just installed it 3 weeks ago and it appears it is not filtering. It circulates and backwashes good but the pressure goes back to 18 psi and doesnt change. The...


18 is about what I would expect ... you shouldn't back wash until about 30.

If your water is cloudy ... take a look at the chemestry. Is this a gunnite or vinyl pool? Has the metal been removed from the water using a sequestering agent. What is the pH? Alkalinity? Oh yea ... how long do you run the filter? Should run at a very minimum 16 hours a day ... better to run it 24/7.

First, if you have not ... let the CH go to nothing ... put in some 'metal out' according to the bottle insructions. When the metal is gone ... next, get the alkinity to 100 ppm. Introduce Cl to 2 - 4 ppm. Get the pH to 7.4 - 7.6. Are you using stabilized Cl or liquid? If liquid, introduce 75 ppm Cynauric acid according to container instructions. What about calcium? Vinyl - don't worry about it ... gunnite - get the CA to 300 ppm. BTW - Don't dump all this stuff in at one time.

(presence of metal will turn the water green and possibly stain your pool)

If you fillow my lead, your pool will be sparlking in a couple days.

Jul 09, 2010 | Hayward SAND FILTER, PRO SERIES

1 Answer

I'm getting a little sand into the pool from the return line from my Hayward s200 filter and the water won't clear up? Where can it enter the return??


There is a tiny hose inthe filter ... it is probably stuck in the sand and is sypohoning the sand into your body of water through venturi effect. Get the tiny hose free and your sand problem will clear itself up



Is your system running at least 8 hours a day ... should run 12 if a home system ... most states require 24 hour operation for commercial pools ...

Jun 05, 2010 | Hayward SAND FILTER, PRO SERIES

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