Part # DE3620
Warranty 1 Year Warranty
Hayward Pro-Grid vertical grid D.E. filters provide superior water clarity, efficient flow and large cleaning capacity for pools and spas of all types and sizes. Constructed with high-strength reinforced thermoplastic, Pro-Grid combines high-technology features and "service-ease" design for an unparalleled filtration value for both new pool and aftermarket installations.
In addition, the Hayward Pro-Grid filter delivers low maintenance and dependable operation.
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What's the problem when the DE powder get s back into the pool. Cleaned filter an still how the problem.
Ken, If d.e. powder is shooting back into the pool, it can be bad grids, a cracked manifold or a pinched o-ring.
Hi what is the normal pressure of DE 3620 filter supposed to run at? Thanks
Hi, Jerry. The filter pressure will vary due to several factors such as the type of pump used, flow rate, pipe size etc. The lover the filter pressure the better.
I currently have a Hayward pro grid DE3620 filter. I am looking to purchase a new energy efficient pump. I have an in ground 20,000 gal pool. the old pump is a hayward single speed 1 1/2 hp gold series I believe. What would be my best option for a new pump. The piping is 1 1/2".
Hi Ray I would suggest the PL2605 1.65 HP PureLine Prime Variable Speed Pump as a great energy efficient pump that could be used with this filter.
My Hayward D E 3600 (25 years old) has a crack in the dome squirting water. Can I replace it with t h e Hayward 3620 and will the fittings fit my piping or should I try a different model?
Yes, the fittings will be the same.
I have a 10x20 igp with 17 year old Hayward DE4800 filter and 1.5hp super pump. I go the whole season without having the clean or backwash the filter. I'm looking to replace the filter and was considering the DE3620, is this the right one to get, and is the 1.5hp pump too much power for this filter or can I use it? I was considering rebuilding the the motor or is a new one a better choice?
Hi, Jeff. I best recommend replacing it with the same/new Hayward Pro Grid DE Filter 48 Sq Ft w/o Valve - DE4820. The Hayward Super Pump 1 1/2 HP Single Speed - SP2610X15ump has maximum output of 83 gallons per minute. Depending on the location of the equipment to the Total Resistance to Flow, you may exceed the design flow rate of the Hayward Pro Grid DE Filter 36 Sq Ft w/o Valve - DE3620 at 72GPM. Please review our How to Size a Pool Pump for Your In-Ground Pool first.
I have a 15 X 30 X 5 ft. inground pool with attached spa. I am running an old Waterway Crystal Water DE filter with a Pentair WFE-8 pump (2 in piping and a multiport valve). I replaced all the broken filter grids this spring and now I am again spewing DE into the pool. I think I need to replace the filter as it may be too small for the pump. I cannot read any of the markings on the filter (they all faded) What size filter should I have with this pump?
Hi Russ, The filter that you currently have is too small to be used with the WFE-8 pump. You will then need to determine the flow rate by calculating the "Feet of Head" of your pool in order to properly size a filter. That will be the determining factor on what size filter you need.
what size de filter do i need fora 19000gal pool with a 3/4hpee motor
For a pump and pool that size, The Hayward Pro-Grid DE3620 will work fine, but you can use any of the filter sizes above that like the DE4820, DE6020, or DE7220. The larger the filter, the longer you can go between cleanings and maintenance. If you want a thorough guide on how to size a pool filter read/watch this guide: Inground Pool Equipment Selection Part 2: Filters
can I backwash a de4820 filter? if so how cant find outlet
Hi, You can backwash a DE4820 filter using a slide or multiport valve. The "waste" port is located on the valve.
Is their an advanage by going to a higher volume filter? i.e. my filter should be a DE3620. If I go to a DE4820 will there be any type of advanage?
Yes, the advantage would be that the larger filter likely would not need to be cleaned as often and could handle extra water pressure if the motor is ever up sized.
Hayward Pro Grid DE Filter 36 Sq Ft w/o Valve - which valve can I purchase to use with this filter. Multiport valve or glide valve?
Brandon- With the DE3620 Hayward Pro Grid DE Filter 36 Sq Ft w/o Valve you have a couple options as far as valves, if you want the multiport valve you can use the Vari-Flo Valve 1 1/2" for DE or Vari-Flo Valve 2" for DE and if you want to use a slide valve you can use Valve Ass'y, Slide -2" Skt Wg (sp0410x502s).
I have this model filter for a 20,000gal in ground pool. What is the minimum size pool pump hp I should use when relacing the pump?
This filter is designed to handle a flow rate of 72 gallons per minute. Not all 1hp pumps have the same flow rate. It varies depending on design. The minimum would be a 3/4hp, but no more than a 1hp.
How much D.E. does this Hayward de3620 filter use?
This model filter uses approximately 6 lbs. of D.E. when completely empty and approximately 3lbs. of D.E. after backwashing.
How do I backwash my Hayward Vertical Grid DE filter?
When the filter pressure rises 8-10 PSI over the clean starting pressure, the filter must be backwashed. Turn off the pool pump. Rotate the multiport valve to backwash position or slide the slide valve up. When the pump is turned on, the dirty DE and water will flow out to waste. Once the water runs clear, turn off the pump. With a slide valve, push the handle down and start the pump. Once the pump is primed, add the required DE. If using a multiport valve, rotate the handle to rinse. Turn on the pump and let water flow for 20-30 seconds, cleaning out the plumbing lines. Turn off the pump and rotate the valve back to filter. Turn on the pump and once primed add required DE.
Do you carry replacement grids for the Hayward DE3620 filter? If so, are they made by Hayward?
Hayward doesn't make the grids for their filters. The grids are usually made by a different manufacturer. We do carry replacement grids here: http://www.inyopools.com/cartridges_unicel.aspx
(5 out of 5 stars) DE pool filter par excellence
Reviewed By: coolblue from Winter Springs, FL ()
I recently purchased a Hayward DE-3620 filter as a replacement for a 10-yr old Hayward DE-3600, and was initially most satisfied with the ability to directly install the new unit in place of the old one without having to make any adjustments whatsoever to the interface connections with the existing vari-flow valve and external piping. Upon first use, I found welcome improvements had been made to the ease of operating the air relief valve and to the pressure gage with a simple means for indicating changes in pressure from the initial setting and when filter cleaning is required. Having just encountered a particularly heavy accumulation of oak pollen and blosom debris that indicated a need to manually clean the filter elements (rather than the more usual backwash routine) I was most impressed with Hayward's changes to the design of the clamp ring and the relative ease and speed with which the top shell and the internal filter elements could be removed. I am pleased to see that Hayward has continued to improve their already great DE filter product line.
(5 out of 5 stars) Perfect replacement
Reviewed By: Jean B. from Smithtown, ny ()
Pros: Fully compatible Hayward has a great track record for reliabilty
Replaced same size Hayward de filter which was more than 20 years old. Parts were becoming obsolete. I didn't know how much longer I could take it apart and get it back together. The new filter fit perfectly with the existing multi port valve. Can't wait for next season.
(5 out of 5 stars) Good Price -- Great Product
Reviewed By: Gary S. from El Paso, TX ()
I shopped around on the internet and the price was the best and ordering easy and delivery was timely. I ordered on a Monday morning and the de filter and valve arrived on Friday afternoon. I was also impressed with the improvements to the Hayward de filter. Installation was a breeze!!
(5 out of 5 stars) Pool filter replacement
Reviewed By: dollydogz from Dallas, TX ()
Our pool professional recommended this brand to replace our 30 year old DE filter which is no longer manufactured. It was installed 2 days ago and is working well. We also purchased the multiport valve to go with it. Very fast delivery! Ordered on a Thurs. and delivered on the next Tues. Very happy with the price and and the service.
(5 out of 5 stars) best pool filter yet
Reviewed By: Jim D. from Titusville, FL ()
Pros: much more thorough
I replaced a 2-yr old Pentair cartridge style pool filter with the Hayward DE style. Within 24 hrs my water was sparkling, something never achieved with the Pentair (which is why I replaced it after just 2 yrs). I can already tell that I won't need nearly as much chemicals or babysitting of the system to maintain a really clean pool. What a great product!