Hobart 24 in. LXIC fails sanitizer tests. The sanitizer pump is pumping out about 4-5 ml per rinse when I remove the tube at the 90 degree tube fitting. According to specs it should be about 3 ml of 8.5% solution so it seems to be providing more than enough yet the test strips show nothing.
Comments:
Jul 09, 2009
- We found the problem. The tube in the pump was flattened too much so it would pump when the tubing was removed but did not have enough pressure to inject the rinse stream. Replaced the tube & now the sanitizer is actually too high when tested, which is not a problem to correct.
Jul 11, 2009
- We found the problem. The tube in the pump was
flattened too much so it would pump when the tubing was removed but did
not have enough pressure to inject the rinse stream. Replaced the tube
& now the sanitizer is actually too high when tested, which is not
a problem to correct.
I thought it was designed for domestic bleach at 5.25%, and looking for a solution of 50 ppm of sanitizer and rinse water. Either the elbow is blocked, or the silicone tube in the pump has collapsed. Use rubber gloves and face protection when working on chemical tubing.
Comments:
Sep 16, 2009
- What's changed? By removing the angle fitting it flows. The angle fitting may be blocked.
If you check the data plate on the machine I think you will find it preferrs 5.25% solution. Usually about 6 ml per cycle will give you 50 ppm, asuming your fill flow rate is 20 psi to give you the correct dilution. The sense boards on the back may reject the stronger solutions unless you recalibrate the board. The stronger solution , if too rich will destroy anything rubber in the pump. You may find tiny black spots everywhere, that smudge and don't come off easily. Thats you pump being eaten away.
If the chemical pump pushes fluid and then it creeps back into the bottle, your silicone tube may have collapsed in the pump. Please use hand and face protection when changing these as you will get raw bleach on your skin, and possibly splash in your face as you disconnect the fittings.
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Asker's Testimonial
"
It was a collapsed tube. Thank you for your helpful insight. If you read all my comments added on July 11 you will see your answer verified.
" - weevoe
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