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This sight glass or level indicating accessory takes the guess work out of determining how much liquid is in any of your hot side brewing vessels. It is most commonly installed in hot liquor tanks to measure strike and sparge water volumes, but is also very useful in boil kettles to measure pre and post boil volumes.
While weldless systems have gotten a bad rep amongst homebrewers, this design is different. When installed per instructions, the unit is 100% guaranteed not to leak the first time and any time you reinstall it (no leak reports in at least 5000 units sold).
Our new Flex Sight kit will work for converted kegs or pots.
Includes:
- One pair of stainless steel machined elbow barbs with matching weldless bushings for installation at the bottom and top of the pot, keg, or tank. Note that our current version of this kit uses red silicone orings as the seals to the kettle and the elbow threaded face has a machined groove to keep the orings from slipping out of place.
- One 24" length of high temperature silicone tubing
- Pair of hose clamps
- Choice of orings or stick on decals for calibration. Note that stick on decals can be applied directly to your keg or kettle, but if you are heating on an open flame, the lower numbers will melt off. This option is best used for electric vessels. For the orings option, you'll get three larger orings to mark 5,10,15 gallons and then eleven smaller rings to mark each gallon in between. IMPORTANT NOTE: The numbers you see in the picture are a little different than the ones we include in this kit. We include the same numbers as the other sight glass kits with the smaller arrows that run under the number.
Install instructions:
Drill two 1/2" holes in the pot or keg, one at the bottom and one at the top. Avoid putting the hole too close to any curves, welds or other obstructions. Hint: Use a framing square to ensure that the holes are directly plumb or "inline" with each other. It is important not to drill the holes too large. You want the male threads of the weldless bushings to just barely make it into the hole. The max OD on this thread is .52" which is just over 1/2". Drill a 1/2" hole and then just remove the burrs with a file and you should be able to get the bushings through.
The bushing goes through the hole from the inside of the kettle, out. Then roll the red oring over the threads on the OUTSIDE of the kettle. Then thread the elbow on. Generally you can get a seal by tightening by hand. If not, just grip the bushing with a pair of pliers and snug the elbow a little more. If you put the oring on the inside of the kettle, you will absolutely have leaks and we'll make fun of you when you call about leaks.
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Works great, no Leaks! 
