Hello. I'm living in a 2 story house with 1 bathroom on the 2nd floor and one in the basement. We keep getting these increasingly loud pulsating sound throughout the main water pipes. It lasts about 10-15 seconds and happens inconsistantly about every 20 minutes. One of the effects that it has is that it forces air bubbles up through the toilet tank in the 2nd floor bathroom. It also makes the water pressure in the shower pulse while this is going on.
Can anyone give me some troubleshooting tips to help figure this issue out?
Thanks in advance,
-Jack