Cartidge filter high pressure at 35 PSI when filter is running

[qwertyuiop]

So recently my Hayward 4 cartridge filter has been at around 35 PSI when running. The manifold did have a crack and I changed that last week, which I am assuming cracked due to the high pressure. I have cleaned the cartridges (about 2.5 years old) multiple times in the last month since I thought that might be the problem, but I ran the filter without the cartridges and the pressure was still pretty high between 25-30 PSI. I believe it used to sit at around 10-15 PSI, not entirely sure since I don't live there currently and it is a rental home. I tried checking the in and out pipes when changing the manifold to see if there is anything stuck in there but did not find anything blocking the path. We did recently change the pump since that went out about 2 months ago, and I believe the high pressure started around then, but I am not entirely sure if it had anything to do with it.

Does anyone have any ideas of anything I could check to lower the pressure? I have attached pictures of my system. This is my last effort at fixing it myself, before I just call someone to take a look, so any help would be appreciated.

Pictures of system: Imgur: The most awesome images on the Internet

 

[pabeader]

Try removing the eyeballs from the return fittings.

 

[qwertyuiop]

eyeballs on which return fittings? Sorry, not familiar

 

[qwertyuiop]

Oh you are talking about the ones in the actual pool? Should i just unscrew them and see what happens?

 

[kadavis]

There's a valve in between the waterfeature and the cleaning system ports can't really tell what position it's in from your picture but try putting it in the middle with the handle pointing down. What size motor do you have now?

 

[qwertyuiop]

If I put it pointing down, that sends half the flow to the waterfall, and the other half to the popups I believe. It is currently to the right which directs the full flow to the cleaning sytem.

Also, side note, since the pressure increase happened, the waterfall has been A LOT weaker than it was previously and you can tell the water is not running as fast down it, not sure if related.

The motor is a 2.2 HP I believe.

 

[qwertyuiop]

Anyone?

 

[Brianf60]

Is the pump the same size as the old one? If you have up-sized the pump then you have your answer. Have you checked the gauge? It possible the gauge is faulty. Is the flow from all of the returns the same?

 

[kadavis]

Could you take picture of the complete equipment setup. When you opened the valve into the middle what happened with the pressure?

 

[Pooldesigner1]

What pump did you install? Did you replace it with the same HP as before? The new pump may be too powerful for the size piping and filter you have.