Question about Home

1 Answer

Pressure at 15 psi after backwashing

Same situation. New house, old pool. Been having algae problems lately. Got that cleared up for the most part, but the filter's been showing 15 psi, even after bacwashing and rinsing. I don't know what else it could be! The pool is about 7700 gallons, oval shaped, and I'm not sure how old the sand filter is, but it doesn't look very old at all. Is 15 psi too high? Please help!!

Posted by on

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
  • 308 Answers

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

Posted on Jul 13, 2009

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:

4 Answers

I have a sand filter and my levels say ideal but water is real cloudy after adding chlorine


Take a sample to a pool shop and find out. If the pool has been green you may have dead algae floating around, a sand filter will never take that out. You need to flock it or new water. Then there is the toy you call a sand filter, OK when everything is perfect but small filters and pumps just won't handle a very dirty pool.

Jul 08, 2014 | Intex Automatic Salt Water System for ...

3 Answers

Algae dust in pool


I think Brandon's answer deserves a little more time and a slight explanation... as I think it is Spot On!
Algae dust is usually "Already DEAD" algae!
And normally it is way to Small & Fine to be trapped by the filter.
We here on this forum do not know what type of filter you have, But if you do have a "MultiPort" valve as Brandon suggested you turn to the "Waste" mode, you will not use the filter mode to vacuum, as this will only BLOW the Fine Silt like substance right back into your pool, spreading out into the water to be suspended turning your water cloudy if not green, until it settles, and once again you have a covering of Dead Algae Dust on the floor of your pool. But when the filter valve is in Waste mode, you will bypass the filter and the return line altogether and your vacuumed algae silt will be sucked up into the valve, and OUT the valve to waste. And just like that all of the algae dust is vacuumed out and did not Blow back into your pool.
I just had a situation where we cleaned up such a pool where the customer couldn't get the algae out, we came out and vacuumed to waste. And I by chance took a picture of the partially vacuumed pool and Dust remaining.

algae-dust-in-pool-iwrnrkacomuoeuyhvucmvd0t-2-0.jpg If you don't have a multipart valve, then if the pool has no debris but only dust, then and ONLY then, should you use Backwash mode. You NEVER want to vacuum a pool with debris in Backwash mode! NEVER!!! Because the larger debris you are vacuuming will get caught in the internals of your lateral drain assembly or your DE Grids. then it will be very difficult to un clog them, which in turn will reduce proper water filtration efficiency! But the algae dust will be able to pass right on thru. If you have neither of these types of filters because you have a Cartridge style filer, the elements may be able to trap the dust, if it is still to fine to filter, you obtain an additional pool pump, place it pool side, and in the pump out the pump will be two vacuum hoses and away you go.

Good Luck

Aug 01, 2013 | Pool & Spa

1 Answer

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.

Aug 06, 2012 | Hayward Pool Products Hayward Pro Series...

1 Answer

How do you work the pump? We have just moved and new house has a pool with this pump but we have no idea how to use it and the pool is green.


Your pool is green because of algae. You need to run the filter 27/7 until it clears up ... Bring the chlorine up to about 10 PPM. When the filter pressure increases 10 to 15 #, backwash the filter until clear in the site glass then resume filtering.

If you have a multi-port valve, ONLY turn it in a clock-wise direction and never with the pump on.

If this is new water ... the green is metal in your pool. At this point, the only thing you can do is run the filter 24/7 until it clears ... Do not add any Chlorine until the green is gone./ You may want to consider using a filter flock product.

You should get an indoctrination from your professional pool supply place on the ins and outs of pool operation before you go much further.

I hope this helps you ... if you have more questions ... you can seek me out at this site.

Thanks for your interest in FixYa.com

Feb 05, 2011 | Pool & Spa

1 Answer

My pool is a 24x52 intex and the pump wont work


Try backwashing the filter until the pressure is between 10 and 20 psi. (backwash for a couple min then run it on filter for a min and so on until the filter pressure is normal). If this doesn't work, the hose may be cracked/punctured, if so you will need a new hose.

Jul 16, 2010 | Aqua Vac Tiger Shark

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

I installed a new pentair de filter and new multiport valve. at start up the filter pressure reads 40 psi. after multiple backwashes and rinses the pressure goes down to about 15 psi but slowly climbes...


If the pressure is 15 psi on recirculate, and high on filter, the problem is the filter itself, or the valve plumbing. The DE filters are unusal in the fact that they are plumbed like a sand filter, NOT the cartridge filter. If you could give details as to which filter AND multiport valve you have (look on sticker for model number on valve) it would help to figure out if the problem is in the filter or valve.

Jun 26, 2009 | Pentair "Pentair" In Ground Pool Pump ...

1 Answer

What is normal pressure at pool sand filter when pump is running?


This is normal pressure! As the filter becomes more dirty you will see the pressure get higher 15/20 it's time to backwash!

Jan 09, 2009 | Home

Not finding what you are looking for?
Home Logo

Related Topics:

164 people viewed this question

Ask a Question

Usually answered in minutes!

Top Home Experts

Donni Steen

Level 3 Expert

659 Answers

Tom Chichester

Level 3 Expert

33294 Answers

Brad Brown

Level 3 Expert

15451 Answers

Are you a Home Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...