Have 3 SS bays, from Ginsan "The Ultimate" pumpstand. All bays run plenty of pressure. Bay 3 looses most of it's pressure, if it runs concurrently w/ either bay 1 or 2. Then, they will all chatter. But, bays 1 & 2 can run together & no problems. It's only when bay 3 runs w/ either/both bays 1 &...