RODI Auto Shut Off rebuildable?

[nivram]

My ASV doesn't appear to work any more. Can these be cleaned or rebuilt?

 

[cdness]

They are mechanical so possibly could be buildup in the valve. Try soaking it in a vinegar solution and trying it out again.

 

[AZDesertRat]

You can disassemble and clean many of them. For the cost though it is probably better to replace it and add a 1 psi check valve in the circuit as shown in the attached drawings for a more reliable shutoff.
http://www.spectrapure.com/huds/ASO-SYS.pdf

Most vendors do not include this check valve and it really does make a difference.

 

[nivram]

You can disassemble and clean many of them. For the cost though it is probably better to replace it and add a 1 psi check valve in the circuit as shown in the attached drawings for a more reliable shutoff.
http://www.spectrapure.com/huds/ASO-SYS.pdf

Most vendors do not include this check valve and it really does make a difference.

The odd thing is that I believe this was sold to me as new. I am also running the check valve. I'm going to check my install and try again after comparing to that diagram.

Thanks