|The original gauge that broke under pressure|
Because this area of the sight gauge is heated to sparge water temperatures (170f) and then cooled to room temperatures, the washer gets soft and a small leak (drip) occurs during my brew session. Not enough to be a problem but enough to annoy me. After multiple brew session, I end up over tightening the compression nut to solved the leak and as you can see in the picture, this practice eventually ended up breaking the tubing.
I came up with a solution to this problem while I was in Mexico this year. The fact is, I was trying to come up with an alternative to the ridged plastic tubing since I couldn't locate any in San Miguel. What I could find was the flexible tubing and so improvise a new gauge that could utilize this new material. It turned out to be a much simpler design but I had one big question, would it leak under brewing conditions? That I couldn't answer until I got back to Santa Cruz and tried it out on my brew sculpture.
|New gauge assembled|
|New gauge with copper sleeve|
|Tubing forced onto barbed fitting|
It worked great. Water line is still very visible and although the tubing got soft in this high heat, it didn't leak at all and stayed securely in place on the barbed fitting.
If you've followed me in making my original sight glass and you're experiencing the same problem, an easy fix is making the adaptions to yours with a barbed fitting and flexible tubing that fits tightly. during assembly, I heated the tubing I used to soften it enough to make it easier to secure to the barbed fitting as it was very tight.
All of the parts shown are 3/8" including the barbed fitting. If you make one of these, let me know how the results were for you.
|All parts are all 3/8" & washer should be semi-hard|
If you have any questions, feel free to email me. I also appreciate all comments. Cheers!