pump piping

[sulconst2]

http://www.inyopools.com/Products/02200001004580.htm

ratchet cutter is made by "rigid" or "ridgid" works great, till now,
cuts up to 2".

the long sweep 90 is cause i ran out of vent 90, short sweep. yea these fittings only have 3/4" mate. that must be it. i'll hit the supply house instead of a box store.
thanks
john

[chrisexv6]

http://www.inyopools.com/Products/02200001004580.htm

ratchet cutter is made by "rigid" or "ridgid" works great, till now,
cuts up to 2".

the long sweep 90 is cause i ran out of vent 90, short sweep. yea these fittings only have 3/4" mate. that must be it. i'll hit the supply house instead of a box store.
thanks
john

Yep, thats your problem. I did the same thing, not realizing that there were different fittings for "pressurized" connections. The big box stores do actually have them, I just didnt happen to look. Just for kicks, when you make the new connections, rough the inside of the elbows and outside of the pipes up a little with emery cloth or sandpaper before priming them. Not sure if it really makes a difference, but you never know.

BTW, the Northstar is a nice pump, but its really *really* powerful. Going up from a 1.5HP SP to a 2.0HP Northstar is a pretty big difference (bigger than just .5 HP). Im actually running a .5 HP Northstar with my Hayward S244T filter, and the liner installer said that might even be pushing the limits of the multiport.

-Chris

[CarlD]

I think Poconos is right. If those 90 deg bends coming out of the pump aren't Sched 40 or better you have little chance of them standing the pressure. Those are only drain strength. EVERYTHING you use on the pool should be Sched 40.

You'll have to try working the routing to the filter differently--of course, if it's the PVC to the black fittings on the filter that's failing, you'll need some sort of PVC to ABS adaptor to make that work.

[likesspace]

Hi,
I work with PVC on a daily basis and your problem is definately that you are using DWV fittings on this pressure application. When you go to get your new fittings, make sure that you specify you need them for pressue. Even DWV fittings are schedule 40 but there is a big difference between the fittings made for drain, waste and vent and pressure applications.
Hope this helps.
Dave

[sulconst2]

well, changed it out with the pressure fittings. plus got clear primer. duh! sure enough took 10 minutes, let it set for an hour, and she is cranking away. pressure in the 50 psi max cartridge filter is 33psi. looks like stronger circulation at the pool so hope the powered cleaner works better. plus the pump runs much cooler to the touch than the super pump.
well thanks for the help. not too often this "ol dog" learns new tricks!