Question about Hayward S166T Pool Filter System w1 HP PumpS166T92S ()

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I have a hayward s166t filter, guage reads 0 and sight glass water does not swirl when backwashed

I have a hayward s166t filter with new head , guage, sand, everything seems good, but when i backwash the water comes out line but some water runs in the sight glass but does not swirl, also the guage is brand new and the old guage register 0 pressure registered

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  • Hayward Master
  • 1,631 Answers

Does it show pressure when in "Filter" mode?

If not, then your pump is either not primed, Impeller is plugged, or there is not enough water in the pool, you are sucking air.

Posted on Jan 27, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: sand in my waste water

O-rings or gasket are replaced to stop leaks, so that wouldn't have helped you.

It could be one of two things; either the white PCV-like pipe in the filter tank is cracked OR some of the laterals at the very bottom of the tank, under the sand, has melted. A whole new underdrain assembly is usually $70.

Posted on Sep 05, 2009

  • 990 Answers

SOURCE: My Hayward Swimpro Sand filter is not backwashing

Be sure it is not plumbed backwards and be sure you got a sand valve as a DE plumbs the other way.

Posted on Jun 26, 2010

adamh294
  • 310 Answers

SOURCE: I have a brand new S244T sand filter. During

When backwashing with this valve, it is supposed to come out the waste line. Also when in "rinse" and "waste" it will also come out the waste line. It is acting just how it is supposed to act.

Posted on May 26, 2011

  • 990 Answers

SOURCE: I have a Hayward S166T sand filter. I changed out

Your best bet is to replace the whole top assembly as the plastic top probally is etched and bad.

Posted on Aug 15, 2011

SOURCE: My new Hayward Pool Sand Filter won't backwash.

Hey!
Mine was doing the same thing. I had the hoses switched up. I had the hose from the pump connected to the port marked RETURN (on the Hayward vari pump valve). Not good! I also had the return line hose (from pool) connected to the port marked pump. It happens! The problem is I tried EVERYTHING ELSE before I found my error. This includes a trip to Leslie's to buy a brand new multi port valve (good thing they have a return policy) AND changing out my relatively new sand in the filter AND taking apart the vertical tube and each individual flange at the bottom to clean them out. Please check your hoses FIRST if it won't backwash! By the way...I've been a pool owner for 17 years. I think my experience worked against me since I didn't recheck my work at setup.
NOTE:
It might SEEM like your filter is working because you get suction at the skimmer and water rushing thru the return line into the pool. It's not working if your lines are backwards like mine were! My water started turning green!

Posted on Jun 22, 2013

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1 Answer

How does the water flow through the sight glass? How do I know if my pool is filtering


water only goes through sight glass when backwashing check your chemicals make sure ph and alkalinity are within spec also check chlorine total and available sounds like you need to super shock pool

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Is my pool pump filtering correctly?


The cloudiness or turbidity of your water indicates a leaking or damaged filter membrane/element. The green color is due to the growth of algae. Are you using the right algaecide? Is the dose right? You have to consult a water treatment specialist to know these.

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When filter is set on


The valve on top of the filter has several settings. What is yours set on. If it is set on Backwash or Rinse or Waste, it will allow the pump to send water out the drain. If you have new sand, you probably should run on the Rinse setting for awhile, then switch to Filter.

Jun 22, 2012 | Hayward S166T Pool Filter System w1 HP...

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Hayward s166t sand filter has sand in sight glass during backwash


did you get sand in vertical tube if so it will take time to get out of line

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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...


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

Www.theswimtimeonline.com

May 26, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

What i she sequence when backwashing---Backwash - Rinse - Wash ? I have a Vari Flo


Backwash until water in the sight glass is clear, shut off the pump and change the valve setting to rinse, turn the pump on for a couple seconds and then back off, change the valve setting to filter and return to normal operation. NEVER move the valve handle while the pump is on.

John

May 05, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

After you backwash the filter do you have to put in a powder through the skimmer?


If you're using a sand filter you don't use diatomite like you do on a DE filter. You should 1. Turn pump off. 2. Move valve to backwash. 3. Allow to back-flush till water is clear (check sight glass). 4 Turn pump off again. 5 Move valve to rinse 6. Turn pump on till water is clear again.7 Turn pump off, return valve to filter. 8 Turn pump back on again. No power is added to a sand filter. There are some materials to "clean" your sand perhaps twice a year, follow the manufacturer's directions for this.

Jul 04, 2010 | Hayward SAND FILTER, PRO SERIES

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