no mine runs between 80-100. I would inspect the tubing closeley. also remove the tube and make sure there aren't any burres on it and that it is seated properly. but now that u mention it mine did too, and eventualy stoped itself. but im always constanly pushing tubes in to make sure.
On the yellow hose wher it connects to the RO
. if you pull that tube out. in the end, there should be a needle restrictor. you need this to make the ro
work so. remove that restrictor and set it aside the trim some tube of the yellow. 3" or so. if you could visualize a straight tube whith both T's in it aprrox 12" apartt . so 3" of tube, then the first T, then lets say another 10" tube in the other side. put your restrictor in this ten inch section and push it into the t oposite the 3" peice then the second T on the other end. then the rest of the hose oposite of that. now you should have a straight line whith two T's and to open holes with the restrictor between the T's. take two more peices of tubing, say 5" each and insert them into the T's. then fit the valve between them. should look something like the flush kit listed at www.aquariumwaterfilters.com
when you want to flush the RO
just open the valve to bypass the restrictor for like 60 seconds, then shut the valve for normal operation.