Hi Cliff
A 5hp pump and a 3hp pump are massive as is the filter (500gpm capacity) do you have a very large pool or a lot of head
If you didn't have a...

Generally speaking you match a pump to a filter so that you don't get an excessive flow through the filter
A bigger filter is no problem to use with...

If you are in the States try I have heard they are good for different spares

Normally the spider gasket is a separate part, however your one may be different.
Look up the make of your MPV and check it out or Google...

Try posting here, as you are more likely to get a response since there was no reply since January

Your pump should be matched to your filter as excess flow through it will end up with poor filtration. So check the gallons per minute for your...

That is all the dead algae being vacuumed
It will get better, some people take weeks to get it right. Keep testing, brushing and chlorinating till...

Building inspector came out and said the leaking wall was mixing with the pool pump chemicals creating muratic acid.
Mixing pool chemicals does not...

That does seem normal, you probably have an algae bloom that is clogging your filter and you need to Slam
Let us have a complete list of numbers
How...

Thank you. I will let you know how it goes once I get and install the new filter.

i have same exact thing. is it normal ? did u call hayward?

Try posting on TFP a lot of people on there have replaced seals

Thank you so much this seemed to help

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You have posted this on TFP, I suggest you stay with it there as you are more likely to get a satisfactory resolution if you do as they say