Replace pvc and mount on wall: reran power

I reran all the power to the third pump stand.  I also moved the stand today.

I have a gain of 43" between the third pump stand and the holding tank.  This looks like enough room for the r/o tank and chemical buckets.  That means that I am done with moving the pump stands.  I will try to finish running the cold water line and the weep system tomorrow.  Then start moving other things.

Key to my vacuum

Someone must have just figured out that they had a key to my vacuum (Abus locks).  They opened the vacuum and ripped down the filter bags.  They also left the lock which was nice so I do not need to purchase a new one.  I just hope they do not open them again.  Then I will have a purchase new locks.

Air in my water line

After reading Autocareforum and listening to Mac.  I checked if air was coming through the pump.  When I placed my finger on the inlet of the pump, air was blowing out.  I then checked if a check valve was in the bay which there is not one.  Then I tested the check valve between the pump and the holding tank, which was bad.  I replaced it with a new check valve and tested again.  Everything was fine it held the air from going into the water line.

So Mac was right about the check valve between the holding tank and the pump that was the culprit.  I was having a problem with a tire cleaner air solenoid that was stuck.  I was waiting on fixing the problem until I fixed the air in the water line.  In retrospect I should have been able to figure this out.  But I guess I needed to just sit down and think logically about it or ask someone on the forum.  So the check valve would not hold the air out and the air would blow into the water line and holding tank.  Very simple after you think though the problem.

Air in my water line

I am getting lots of air in my water holding tank and water line.  It will start bubbling out of the water outlet of the tank and make the pumps upstream cavitate.  It would also stop bubbling after a while.  I believe I have narrowed it down to one bay. I bypassed all the solenoids and replaced the bypass hose. I am still having a problem. The system is being fed by a pvc pipe and then hoses for each bay running off of it. The only thing I can think of is maybe the check valve in the bay is the problem. 

I also busted open a pump and noticed that everything looked fine.  I then connected three or four pumps to city pressure and they all worked fine.

Autocareforum Update:

I was reading the post: Posts in Subject: New pumps pulsating
He seemed to be having a similar problem. But my holding tank has always had clean water.

But what I learned was I should check the:
1)Tank filter: (sbartlett) I did not really check this. If this is it I will feel really stupid.
2)Check with city water: (MEP1) I believe I checked and everything was okay. But I will check again tomorrow. I tested three or four with city pressure today.
3)Check valve in the bay: (mac) I was thinking this was my problem but now I will know how to check the idea before I just replace it.
4)Weep system: (ghloncc) I have check valves on each bay for my weep, but one could be bad.