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Could you please let me know minimum pressure for backwash?

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That would be 0-5 filter is under very little pressure

Posted on Jul 23, 2009

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Backwash pressure


Backwash pressure is not really relevant unless you are getting a high reading. Most psi will show 0-5 lbs. If it runs higher than that check the waste line to make sure that any valves are all the way open, or for kinks in the discharge hose.

Sep 12, 2013 | Hayward SAND FILTER, PRO SERIES

Tip

Basic Swimming Pool Care


<p>Basic Pool Care Tips<br /> <ol> <li>Test chlorine and pH at least 3 times per week. Have a comprehensive water test every 6-8 weeks at your local pool store. There is generally no charge for this test.</li> <li>Operate pool equipment a minimum of 6-8 hours per day during winter months and for 10-12 hours per day during the summer for greatest overall benefit.</li> <li>Brush the pool walls and floor a minimum of once a week.</li> <li>To prevent damage to pool equipment make sure the water level never drops below the opening of the skimmer.</li> <li>Lubricate backwash valve "O" rings on sand and DE filter four times a year. Lubricate pump lid "O" ring periodically with Lube specifically designed for use with swimming pool equipment.<br /><br /><img src="water_1.jpg" /><br /><br /></li> <li>Test pH and add muriatic acid as indicated to maintain pH between 7.4 - 7.8. Never add more than 1 pint of acid at a time and wait at least 1 hour between treatments. Always add muriatic acid by dispersing into pool water opposite the skimmer and disperse as far away from the wall of the pool as you can safely reach. Use care not to drip acid or any chemicals on deck as it will cause deck etching and staining. Do not pour acid over steps, benches, or pool light. Make sure water is circulating.</li> <li>Clean waterline tile with cleaner a minimum of once a month during peak season.</li> <li>One month after initial pool start-up, add stain and scale inhibitor on a regular basis.</li> <li>Always follow manufacturers instructions on product labels.</li> <li><b>NEVER ADD WATER TO CHEMICALS</b> - Add chemicals to water.</li> <li>Always wait one (1) hour between adding different chemicals unless otherwise directed. <ul> <li><b>Filters:</b> <ul> <li><b>Sand Filters:</b> Backwash once per week</li> <li><b>DE Filters:</b> Backwash once filter pressure increases 8-10 psi above your "clean pressure" noted at start-up.</li> <li><b>Cartridge Filters:</b> Need to be taken apart and elements need to be cleaned once filter pressure increases 8-10 psi above your "clean pressure." This cleaning should be done at least a minimum of twice a year.</li></ul></li></ul></li></ol>

on Dec 21, 2010 | Pool & Spa

2 Answers

Who often should I backwash sandfilter


I would let it run for about a minute depending on how clogged it was. Our backwash drain is very visible so we can see when the dirty water has left the filter, usually about a minute or two.

Apr 06, 2013 | Hayward SAND FILTER, PRO SERIES

2 Answers

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

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May 26, 2011 | Hayward SAND FILTER, PRO SERIES

1 Answer

I have a square D pressure switch on my home well water system. I also have a Iron filter on the system. The problem I have is that when Iron remover is in it's backwash cycle at night and someone uses the...


I find it interesting that you never had this problem. Did something change, specifically on the backwash of the iron filter? Is is possible that there is lower restriction to backwash causing the lower pump pressure? Could you throttle the backwash flow to allow pressure to be maintained and still get adequate backwashing?
It seems a lot of water must be flowing so that when you use some water the pressure drops to more than 10 psi below cut-in, that means typically 30 psi shutoff point.
Can you lower cut-in pressure, say 5 psi, lower?

Jan 05, 2011 | Square D 9013gsg2s22j99r Pressure Switch

1 Answer

My raypak heater won't relight and the pilot is on


For the heater to burn, there must be water pressure and flow - and the heater must know of it. It is not enough that you know the pump is on, the heater must know it. Check your heater's water pressure switch.

What about the filter pressure ... high filter pressure would indicate need for a backwash. dirty filters slow the water flow. If your filter normally runs at 20 PSI (when clean) it should be backwashed at 30 PSI, rule of thumb = 10 psi over 'startup pressure'.

Your heaters job is to heat the water ... think of it as a very agressive bully. The water is absolutely necessary to keep the bully in check.

May 31, 2010 | Raypak Free Hydraulic Lift Gate Delivery -...

3 Answers

Pressure up past 15 or 20 shortly after


The sand is clogged and needs a backwash or change.

May 25, 2010 | Hayward Pro Series 18" Above Ground Pool...

1 Answer

Recommend backflush pressure of a hayward pool filter


After you have backwashed your filter until the site glass run clear. Go to rinse mode for 30 seconds. Make note of the filter pressure. Don't backwash until the pressure goes up 10 psi!! It is important not to backwash too much. As pressure climbs the sand filter actually filters better.

Aug 02, 2009 | Hayward SAND FILTER, PRO SERIES

1 Answer

Pressure at 15 psi after backwashing


No that is normal pressure, when the pressure rises more than 10 psi over that in a 24 hour time, you should backwash the filter. Hope this helps

Jul 13, 2009 | Home

1 Answer

Maintainence


BACK WASHING SHOULD BE DONE WHEN PRESSURE RISES 8 TO 10 PRESSURE PIONTS FROM WHERE YOU RUN REGULAR AFTER BACKWAH BE SURE TO ADD DE 3 TO 5 YEARS

Jun 10, 2009 | Hayward Micro Clear 25 Sq Ft Cartridge...

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