flow restriction

Good day, I have been trying to troubleshoot my RO system. I had an under the sink PUR RO system for about 3 months until it stopped producing water. the waste water runs all day and night yet nothing ends up in the tank. I tried replacing the RO membrane (High TDS water, maybe it failed early)...

Hi. Newbie here. I've searched for help on this topic all across the Internet and I couldn't find anything. So, I thought I'd ask the pros. I have pipes at the main that sometimes violently vibrate / chatter. This seems to happen during medium to heavy flow. Here's my setup: Water comes up...

My plumber is planning on using a series of sticks for our main lines going to the second floor from our basement. My question is: Would an uninterrupted 3/4” coil line provide a noticeable increase in flow vs 3/4” sticks (which would require 2 fittings potentially) to span the same distance...