I just had an IntelliFlo 2 VST installed yesterday and everything ran great after the installer left with the pump set to 1550 rpm.
Now this morning, when the pump started at 1550 rpm, I noticed it's not opening my spa check valve. The valve will open at higher rpms (around 2200), but that kinda defeats the purpose of the energy efficient pump. I've also tried kicking up the rpm temporarily and then backing down to 1550, but the check valve shuts. The pool was designed to output to the pool with a bypass to to the raised spa, with the check valve preventing the spa from draining into the pool with the pump off. In the pic, the pool/spa output valve is temporarily split to bypass the check valve since it won't open at the super efficient 1550 rpm. This is only temporary until I can figure out a check valve solution.
The valve is a 1" diameter Flo Control D-2466 spring check valve, replaced recently when the old one failed. I believe it has a 2lb spring.
Any tips on getting the valve to open without upping my rpm and killing my efficiency? Would a 1lb or adjustable spring make a difference? Are those even made? Ideally, I don't want to have to re-plumb this whole section.
Thanks!
In the pic, the pool/spa output valve is temporarily split to bypass the check valve since it won't open at the super efficient 1550 rpm. This is only temporary until I can figure out a check valve solution.
(PS - I know the plumbing of the pool is a little weird. The pool is about 20 years old and I bought the house 8 months ago).
Now this morning, when the pump started at 1550 rpm, I noticed it's not opening my spa check valve. The valve will open at higher rpms (around 2200), but that kinda defeats the purpose of the energy efficient pump. I've also tried kicking up the rpm temporarily and then backing down to 1550, but the check valve shuts. The pool was designed to output to the pool with a bypass to to the raised spa, with the check valve preventing the spa from draining into the pool with the pump off. In the pic, the pool/spa output valve is temporarily split to bypass the check valve since it won't open at the super efficient 1550 rpm. This is only temporary until I can figure out a check valve solution.
The valve is a 1" diameter Flo Control D-2466 spring check valve, replaced recently when the old one failed. I believe it has a 2lb spring.
Any tips on getting the valve to open without upping my rpm and killing my efficiency? Would a 1lb or adjustable spring make a difference? Are those even made? Ideally, I don't want to have to re-plumb this whole section.
Thanks!
In the pic, the pool/spa output valve is temporarily split to bypass the check valve since it won't open at the super efficient 1550 rpm. This is only temporary until I can figure out a check valve solution.
(PS - I know the plumbing of the pool is a little weird. The pool is about 20 years old and I bought the house 8 months ago).