Sta Rite U-3 skimmer vs Hayward SP1070

Hi pool newbie. I have a sta rite u-3 skimmer assembly on my inground gunite pool. Until recently an old roomate took care of the pool. Now I’ve taken over duties in the past couple of weeks. I have noticed all the parts that are with a U-3 skimmer are all missing including weir door, check valve, float valve, and equalizer trimmer plate With screw. Basically all what’s left is a basket and Lid cover. My friend recently purchased a house with a pool and in his garage he found a Hayward sp1070. I don’t want to replace the entire assembly since I heard it’s a huge job to say the least. Can I possibly take the missing parts off of his Hayward Sp1070 and install in onto my Sta Rite U-3 skimmer without any problems? I’ve heard that the parts are interchangeable?

Second question…

i noitced there are 2 ball valves made of pvc? and both handles are broken.valves are about an inch above from concrete floor next to pool pump.  Appear to have been weathered and junk valves were used . We Have to use pliers to attempt to move the valve either direction. How do you replace these? Where do I get them from? Is there a better upgrade? These are the only 2 valves on entire pool system except metal handle on the bottom of a pentair de filter for backwashing. Not sure exact what these valves do?

Thank you very much for your time and also thank you for the tons of information thus far .

Hi Arvinm,

I’m not aware that the SP1070 and U3 skimmer parts are interchangeable, but I did now just find a listing online listing a “SP1070 / U3 Skimmer Weir” so it’s worth a shot to try your friends 1070 weir door.

As far as the ball valves go, there are a whole bunch of different styles of ball valve handles and they are not interchangeable. In my experience, it is less expensive to purchase the Complete Ball Valve if you want to upgrade then you could go with one of these 2 Port Diverter Valves.

If you want to post some photo’s of your plumbing then we may be able to determine what the valves do.

Thank You

Patrick

www.inyopools.com

Thanks for the response back. Will all the other items from the sp1070 fit on my U3 or is that strictly sta-rite/pentair only?

Ill take pics of the ball valve. Looking to upgrade so they don’t break again.

It looks like just the Skimmer Weir and the Skimmer basket are the only interchangeable parts between the Hayward SP1070 skimmer and the Sta-Rite U3 Skimmer.

Thank You

Patrick

Thanks again Patrick. I’ll check and see if I can grab the weir door from my friend

Thanks Arvinm, let us know how it works out.