Thanks in advance for taking a look and potential help with my mystery situation here!
I bought a Waterdrop 10UA Under Sink Water Filter System (it does NOT have a pressure tank like a RO system) and installed it along with a new faucet that has a separate inlet for a filter line. I used a splitter from the main water line in to separate the water in two directions, one to the regular faucet and the other to the water filter system on through the water filter faucet line. It started off GREAT as the flow of water through the water filter line was full and fast until after a month/months. Instead of being able to put the water instantly at full blast you kind of had to very slowly pull the lever and let the water creep out to keep it from making a DUP-DUP-DUP noise and shutting it off. When you got this noise and the water shut of from the water filter spigot you then needed to throttle the regular faucet lever aggressively on and off a bunch of times to get water flowing in the water filter line again. I replaced the filter thinking the filter was full but that didnt solve the issue and I just dealt with the problem for awhile. I replaced the filter again for the third time a couple months or so later after that and this time there was no flow at all with the new filter. I thought I had a bad filter so I returned it and got another but this one didnt flow at all either. To troubleshoot, I ripped out the filter system and made sure there were no obstructions and was able to easily blow air through the lines with the filter in place without issue. I also disconnected the water lines leading up into the faucet to make sure there was no clogged aerator or something which there wasn't. So this is my problem, what originally caused the water to flow so well at first and then to make it want to create that Dup-Dup noise and shut off water if the water isnt very slightly on to then just stopping to work entirely??
I bought a Waterdrop 10UA Under Sink Water Filter System (it does NOT have a pressure tank like a RO system) and installed it along with a new faucet that has a separate inlet for a filter line. I used a splitter from the main water line in to separate the water in two directions, one to the regular faucet and the other to the water filter system on through the water filter faucet line. It started off GREAT as the flow of water through the water filter line was full and fast until after a month/months. Instead of being able to put the water instantly at full blast you kind of had to very slowly pull the lever and let the water creep out to keep it from making a DUP-DUP-DUP noise and shutting it off. When you got this noise and the water shut of from the water filter spigot you then needed to throttle the regular faucet lever aggressively on and off a bunch of times to get water flowing in the water filter line again. I replaced the filter thinking the filter was full but that didnt solve the issue and I just dealt with the problem for awhile. I replaced the filter again for the third time a couple months or so later after that and this time there was no flow at all with the new filter. I thought I had a bad filter so I returned it and got another but this one didnt flow at all either. To troubleshoot, I ripped out the filter system and made sure there were no obstructions and was able to easily blow air through the lines with the filter in place without issue. I also disconnected the water lines leading up into the faucet to make sure there was no clogged aerator or something which there wasn't. So this is my problem, what originally caused the water to flow so well at first and then to make it want to create that Dup-Dup noise and shut off water if the water isnt very slightly on to then just stopping to work entirely??
