Can't figure this out? Low pressure pre-soak line blow-out.

[Buzzie8]

I recently replaced my Flojet pump for my low pressure pre-soak. All seems to be working fine except that I keep blowing out the pre-soak line to just one of my bays. It only happens in this one bay. Originally I was patching the vinyl lines with in line push in connectors and after splicing tubing it would work fine. After the line cracked in three different places I decided to replace it with a new line. Today the new line is blown out. All the other bays work fine. Just this one bay is giving me trouble. I know it is not an obstruction because the line flows free for a while after each repair. The equipment is a late 1980's vintage Mark VII.

 

[mjc3333]

Check the high pressure check valve on that particular bay. It must be back feeding through the pre-soak line where the pre-soak line meets up with the high pressure line usually out over the bay itself.

 

[mac]

It is definitely the check valve on that bay for that function.

 

[Bubbles Galore]

Ditto, has to be a check valve especially if the line has been fully replaced.

 

[I.B. Washincars]

The others are correct. If the line pops like a balloon a check valve is bad.

 

[Buzzie8]

Thanks guys. I'll check it out tomorrow and get back to you!

 

[Buzzie8]

Yep, that was it. Thanks guys. Will get a replacement tomorrow.