One of the most common problems pool owners run across when maintaining and serving their swimming pool is a leaking backwash valve. The backwash valve is the valve which is mounted on either the top or side of your filter tank and are specifically used clean sand filters or DE filters. One of the most popular filter manufactures in the world is Hayward Pool Products who also makes quite a few backwash valves. Based on the Hayward valve you have the fix varies slightly. This guide will help you determine which Hayward valve you have and then determine the proper fix for your situation.
Mark Parshall Posted: 4/12/2020
My Hayward series vari-flo XL model # SP0714g11M is leaking at backwash out hole. What part # do I need to replace.Reply
InyoPools Product Specialist Matt S. Posted: 4/15/2020
From step 4: The most common Hayward backwash valve is the SP0714T valve which is used on many of the Hayward top mount sand filters. If you have the SP0714T valve then the spider gasket cannot be replaced as it comes glued into the diverter on the valve. The appropriate fix for a leaking SP0714T valve would be to replace the diverter (part # SPX0714CA) which comes with the spider gasket glued into it. This is an easy enough fix, you would just need to remove the cover and handle assembly from the current valve and swap out with the new diverter.Reply
Anonymous Posted: 4/11/2020
I have a Hayward SP0714T on my koi pond and it works fine except when I put it in the Backwash position, my filter media comes out with the water. This doesn't happen in Waste or Rinse. Any ideas?Reply
InyoPools Product Specialist Matt S. Posted: 4/15/2020
The act of backwashing your sand filter reverses the flow of water through the filter to unsettle the dirt and debris in the tank so it can be flushed out of the tank. This may cause some sand to be flushed as well, but this is completely normal.Reply
Mat Posted: 11/24/2019
Hello. I have a Hayward SP0710XR50 Vari-Flo that leaks.I took the top off and the spider gasket appears to be glued in solid. Any ideas to remove it? Right now I'm using a screwdriver and a rubber hammer (carefully) and all I'm getting are pieces. Last valve I had the gasket just popped out. Did something change? Thanks!Reply
InyoPools Product Specialist Hector F. Posted: 11/25/2019
The gasket may be made from a different company or the glue used to place the gasket in the groove may have been different from before as well. Sometimes these gaskets do come apart when removed.Reply
Tammy Posted: 11/23/2019
I have a Hayward SP0714T. I know that the spider gasket is worn. It is completely smooth and worn down level with the part it is glued into so I know it needs to be replaced. I noticed this because I was losing water in my pool. When I turn the pump off I continue to lose water. A whole lot slower but still the water drops about an inch a week with pump turned off. I let the water drop to see if there was a certain level that it would stop leaking. It dropped just below the skimmer, about 1/2 inch below the skimmer opening in the side wall. I'm wondering if my problem is still just the spider gasket or once the level dropped below the skimmer opening should the water loss stop? I haven't noticed any wet spots on the other side of my pump where the water waste out. I'm going to replace the part, I think it's called a key and gasket?? But any other suggestions on what to try? With the pump on the water level drops about 6-8 inches in one week. Pump turned off maybe about 1-2 inches in a week.Reply
InyoPools Product Specialist Hector F. Posted: 11/25/2019
If you have an above-ground swimming pool with a standard hose connected from the pool return to the filter and the water is above the return line when the leak stops, then it would not be the valve at all. More likely be the skimmer faceplate gasket or liner damage in that area. Now, if you have an inground swimming pool, and do not have any water leaking out of the waste port, then it again is not likely to be the valve. More likely to be a leak at the skimmer itself. Could be a crack in it, in the line just below it under the deck, or maybe even erosion on the pool finish where it meets the skimmer. In the end, it really is a process of elimination and could be a number of things. Hope this gives you some things to check and try.Reply
Sal Posted: 10/18/2019
Hello my Hayward Vari-flo valve is is leaking by. I am getting water coming out of my drain line when it is in FILTER mode.Reply
InyoPools Product Specialist Robert M. Posted: 10/22/2019
Hello Sal - We would recommend replacing the spider gasket. What is the model number on the top your valve?Reply
Dad Posted: 10/10/2019
Hi there. I have the spo714t Hayward valve. It’s leaking from backwash, and then when pump turns on, it has to prime, as the pump is empty I’m assuming it’s the spider gasket faulty. Thanks in anticipation PaulReply
InyoPools Product Specialist Robert M. Posted: 10/10/2019
We'd recommend replacing the Key, Cover, and Handle Assembly (part# 4703-20). That should correct your problems.Reply
DONALD RITCHEY Posted: 9/2/2019
I have the Hayward S244T filter with SP0714T diverter. I am using ZEO sand media. After every backwash, whether I use a rinse cycle or not, I get a lot of ZEO in my pool.Reply
InyoPools Product Specialist Robert M. Posted: 9/4/2019
The issue is usually a cracked lateral, standpipe, or a bad spider gasket. It's also possible that the Zeo is breaking down and need to be replaced.Reply
Janine Posted: 8/5/2019
Hello, my model number says SP0704TX but I can find gasket that references that model #... Can you help!Reply
InyoPools Product Specialist Matt S. Posted: 8/7/2019
This is the page for the Hayward Multiport 4 Position 1 1/2" Vari-Flo Model SP704 Parts Diagram.Reply
Anonymous Posted: 7/27/2019
my model hayward model number is faded out. my owners manual states models s220t, s220t2, s244t and s244t2.Reply
InyoPools Product Specialist Matt S. Posted: 7/30/2019
Did you have a specific question about the filter or a part of the filter?Reply
SPO714B Posted: 7/18/2019
My valve says SP0714B. I can’t find this specific model number. Any suggestions?Reply
InyoPools Product Specialist Matt S. Posted: 7/19/2019
That is a part number for one of the pieces of the valve, but there is only one model of SP714T. If your valve has a part or model number with the 714, the whole valve replacement is the SP714T.Reply
Caleb Posted: 7/18/2019
I have a SP0714T so I ordered a replacement diverter. In the meantime, I've put a PVC cap on the backwash pipe to stop the leaking water. However, my koi pond is still dropping ... any idea what might be going on?Reply
InyoPools Product Specialist Matt S. Posted: 7/18/2019
If it is still dropping after plugging the backwash line then it sounds like you have a leak elsewhere. Check your plumbing lines and equipment for water leaks.Reply
Robert knott Posted: 7/8/2019
My Hayward backwash valve is leaking. My model valve number is SP722-A please instruct me on how to correct this leakReply
InyoPools Product Specialist Matt S. Posted: 7/9/2019
A Hayward SP722 is not a backwash valve, it is ball valve. Where is the leaking come from?Reply
Randy Posted: 7/2/2019
I have a Hayward sp714-a valve and the pool was losing water and realized it was draining out of the backwash pipe when the handle was set to filter. Is it just the gasket?Reply
InyoPools Product Specialist Matt S. Posted: 7/2/2019
It could be the spider gasket, diverter spring, or broken diverter stem. I suggest moving the diverter assembly to inspect the gasket, spring, and diverter.Reply
Anonymous Posted: 7/2/2019
Ok I’ll look. ThanksReply
JB Posted: 6/30/2019
My Serial number is rubbed off. I can only make out what looks like 1400. I know for sure theres a 14 in that order. The pump is probably 20 years old. Any idea which one it is?Reply
InyoPools Product Specialist Matt S. Posted: 7/2/2019
Unfortunately, we cannot identify products using their serial numbers; only manufacturers can do that. This is our list of Hayward Valve Parts and Hayward Filter Parts. You may be able to identify your valve or filter from any of the diagrams on the linkReply
cj Posted: 6/25/2019
my valve is a model #SPO714T1, is that the same part and procedure as an #SPO714T?Reply
InyoPools Product Specialist Matt S. Posted: 6/26/2019
Yes, it isReply
Mike D Posted: 6/22/2019
I have a SP714T1 I haven’t seen a T1 mentioned. Is the fix for a leaky backwash on this one to replace the diverter, part # SPX0714CA as well?Reply
InyoPools Product Specialist Matt S. Posted: 7/2/2019
Yes, it is. The SP714 variants all use the same parts.Reply
Anonymous Posted: 6/18/2019
My spider gasket number says it is a SP0714B. And it is white and it is not glued in… Could you give me the appropriate number for that nowReply
InyoPools Product Specialist Matt S. Posted: 6/19/2019
We only offer the SP714 spider gasket glued into the diverter: PureLine Replacement Diverter w/ Spider Gasket for Hayward SP0714T (SPX0714CA)Reply
jim Posted: 6/13/2019
I have a SP714 that just trickles when I try to backwash. What do I need to fix this problem, without buy a whole valve?Reply
InyoPools Product Specialist Matt S. Posted: 6/13/2019
Hello, the entirety of this guide shows you what may be wrong and what needs to be replaced in a multiport valve in the situation you detailed. I suggest giving the guide a thorough read.Reply
SPO710Z20 valve leaking water on top Posted: 6/3/2019
I cannot find this model # anywhere and would like assistance on what to replace as it is leaking from the very top center of the backwash valveReply
InyoPools Product Specialist Matt S. Posted: 6/12/2019
Hello - The compatible replacement parts for your SP710 can be found on this parts diagram: Hayward Multiport Vari-Flow 1-1/2" SP-710X, SP-712, SP-711 1976-CurrentReply
Bill Posted: 6/2/2019
My valve is quite old # is so 710 would like to have kit star gasket is bad should probably replace al o-rings and etcReply