Water pump runs continuously after tank sanitization

[Sandman]

Hello friends,

 

I sanitized our Oliver Legacy 1 as directed and after returning the plumbing to "normal" configuration, have the water pump running continuously when turned on. I have good pressure at all fawcets. Is there air in the pump from a foamy bleach mixture that has to be purged somehow.

 

Thanks in advance!

[topgun2]

I assume that the water pump was functioning normally before you started the sanitization procedure.

I'd guess that you have a loose fitting - the first place I'd check is the fittings around the water pump itself.

Bill

[Sandman]

Yes it was. Thanks I'll check those next.

 

[Snackchaser]

The pump stops running when the pressure set-point is reached.  So it’s pumping, but not reaching full pressure.  This happens when there is a leak on either the suction or output side of the pump.  If the leak is on the output side, it’s easy to find because it will be leaking water.  However, if it’s on the suction side, it will suck air but it will not be leaking water.  The most common cause is the suction side filter right next to the pump.  You won’t see any signs of leakage, but make sure the cap is on straight and tight with o-ring.   I assume you have re-checked proper valve line-up and full closure, and any open faucets.  Other than that, it’s unlikely a leak developed by just sanitizing.

Good luck, Geoff

[Sandman]

Thanks!

[jd1923]

@Sandman did you bleed the air out of the system? Toilet, both sinks and outdoor shower, hot and cold sides?

[Sandman]

Thank you all for the suggestions. I checked all the valves for correct positioning and confirmed that all connections were tight. I checked the seating and O-ring on the suction-side filter as well and it seems tight. I purged all the lines and primed the pump again in boon dock configuration. I still have some air leak but thankfully no water leak>

In retrospect, we always have turned off the pump immediately after use, so may have had a pre-exisitng air leak that I didn't know about. I will be at the dealer in April and will have it checked there.

I appreciate the quick responses.

[Steph and Dud B]

Several people have reported that the o-ring was missing where the pre-pump filter screws onto the suction side of the pump. Ours was, and we had problems with losing prime and air in the lines. To check, disconnect the flex water line, then unscrew the filter assembly from the suction side of the pump. Super easy. The o-ring is size 9/16 x 3/4 x 3/32".

Edited 1 hour ago by Steph and Dud B
Typo