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@JamesW had to make sure I wasn’t nuts as the o-rings I took out looked identical in size. Found the catalog you referenced and looks like parts #4 and #12 are E331 o-rings for my 200-906 2”. @PoolStored interesting on magic lube vs magic lube 2. There are literally thousands of positive...

I see what you're saying, but on my union the E331's fit perfectly on both sides. The tolerances/difference on them must be tiny. Been watching the pump for a while now with no leaks. I have the two original ones I pulled out and honestly one looks like it could be ever so slightly larger, but...

@JamesW This fixed it perfectly! I ordered two of the o-rings as they were on top and bottom. The old ones were definitely flatter and starting to deteriorate when touched. Had to uncouple the inlet too to move the pump as you suggested. Overall 15 minute job moving slowly. Applied some...

Seriously, thank you!!!

This makes total sense - I replaced a bunch of the o-rings (pump, filter, valves) this year on a now 9.5 year old system and I didn't realize these unions had o-rings in them too. Go figure the once I didn't replace starts leaking. Hate to be a pain, but any idea if those o-rings are...

Holy cow! thanks! Saved me a ton of time! Just for my own sanity, that black union should just unscrew in normal lefty-loosy way? Just don't want to crack anything when I replace the o-rings.

Looks like “Praher PVC NO SU 150-12” Have the same union going in and coming out of the pump.

Hi Guys, Recently noticed that my threaded fitting coming out of my Whisperflo is starting to drip. We've had a few hard freezes recently in Georgia and I'm just wondering if something cracked in there. It doesn't drip every single time the pump runs but it's regular enough for me to notice...

Hi there, I have a Pentair Whisperflo 1.5HP (non variable) that’s 9 years old and still going strong. We live in Georgia and don’t close the pool so in Dec/Jan/Feb it will run in frost protection mode. I was thinking about proactively replacing the motor (WF-6) in the fall so that I don’t have...

Thanks for your advice @PaulStinson. It turns out I have a gas supply issue…again. Underground PE line converts to black pipe 2ft underground and the Georgia clay rotted the 2inch bell reducer and let water in. Had a plumber replace the bell and pipe and waterproof the heck out of it and I...

Hi TFP Crew, Seems like a never-ending saga with these Mastertemp 400 units. I went outside to put my hot tub on and the heater turned on spun up the fans, ignited for about 3 seconds then ignition stops completely. You can smell a bit of the burned natural gas as expected coming out of the...

Hello everyone, I've resolved my issue and thought I would share just in case anyone else comes across this. I have a 5-year old Pentair Whisperflo (1.5 HP) (Model #011518). About 3 days ago it came to my attention that my pump wasn't running. I went back to the control box and verified that...

Hi Guys, (@setsailsoon, @JamesW, @mguzzy) I've resolved this issue for several months and I thought I would post back yet again on how all of this went down. After sucking the water out of the shutoff gas line with a shop vac, the heater lit right up. But then after a day later it went back to...

Thank you everyone for the great advice, I knew not to mess around with the natural gas so I called a plumber and my natural gas company. The gas company inspected the meter and the lines and indicated there were no leaks or degradations in the line, even with a pressure test. The gas company...

@setsailsoon I was also thinking maybe water go into the line somehow? The drip leg at the heater had about 3 inches of water in it, it surprised me honestly. So I wonder if I have water blockage somewhere? We haven't noticed any other appliances being affected: Hot water heater, furnaces...

Ok so I'm posting another photo to help clarify. The blue arrow is coming from the street into the meter. The yellow arrow is the branch going to the pool heater (open now). The orange pipe/arrow is connected to the same pipe with yellow valve but the orange branch controls my fire pit and...

The pool technician opened the gas connection at the heater (you can see it in the picture) and nothing was coming out, no pressure, no smell, nothing. The heater is probably 60-70ft from the gas meter. There is a small test port on the main line for the pool heater gas line by the gas meter and...

When we installed the pool 4 years ago, we called the gas company and installed a larger meter. This meter feeds the house with furnaces and hot water as well as fire pit and grill hookup in addition to the heater. I have no regulator on the line and I didn't need one for the past 4 years, I...

Here is a status update on where I landed. I tried all that stuff in that document and none of it worked. So, I called my pool company and they came out and determined that I have zero gas-flow at the pool heater. There is another thread in this forum that has something similar where the guy...