Workingona1920
New Member
I installed a takagi t-k1 on the side of my house. I ran 3/4 copper from the meter to a ball valve and then to the tankless. From the unit I installed a 150 psi PRV exactly as shown in the manual, and continued the 3/4 run to 1 shower, and to the kitchen sink. With everything completed I opened the ball valve about 1/4 of the way to let the water in at a slow rate, within a minute the PRV opened, and remained that way until I shut off the water. Thinking I bought a faulty PRV, I installed another new one, purged the lines, and then shut off the valves in the bathroom and kitchen and noticed the toilet was running. I lifted the float in the toilet and then heard the PRV activate. I plan on checking the pressure today, but I'm baffled since I never opened the ball valve more then a 1/4 of the way, and the pressure was by no means extreme while I was purging the lines. Any advise would be greatly appreciated. Steve.
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