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Could it be that the bypass switch is going out?

Just installed the thermo link, it is making a low growl noise at 1500rpm. If I increase it goes away. Around 2000rpm. Less but there 2200rpm, no noise. What does it mean. It’s like a metal winning noise, like something in the heat needs lube.

New pump is in and working beautifully. Unfortunately I have a “SW Rollout Switch Open”. Which I suspect happened before the install. The old pump was not working correctly and flow was slow and the old pump was so hot that you could not touch it. Do you think this could cause the switch trip...

Hi Jim, I am just installing this pump, I have just read that at if it is to low of an RPM the heater will keep “cycling on and off”. I would like to have it running at a constant rate to ensure the water temperature stays where I set it. It is stand alone and is not automated. No SWCG, just...

Hello Everyone! Getting ready to install a pentair intelliflo 011028 question about gas heater. Anyone know the flow rate needed to run the heater with out having the heat “start and stop”. I have a natural gas RayPak 156a.

Perfect, thank you guys. I will check out these options.

Thank you for the quick reply. Could you suggest a few good options for 2in to 1.5 Pump Unions?

Good Morning Everyone! This site and the members have taught me so much and have saved me a ton of money, thank you! I have a question regarding a new pump install to existing plumbing. My suction lines are 1.5 in PVC the pump I purchased is a Pentair 011028 which has 2inch pump connections...