Review on 🔍 Enhanced Visibility Manometer by RadonAway 50017 for Easy Readability by Steve Brethorst

My history with the manometer. Great tool, good quality and affordable. I use mine as a vacuum pressure switch troubleshooting tool. I've come up with an inexpensive way to test your oven pressure switches to pretty much determine what pressure they open and close at! Obtain an Ortho "Dial N Spray" (or similar sprayer), remove the siphon tube from the hole at the bottom of the screw nozzle/bottle cap and insert your own vacuum tube into the hole at the bottom of the cap. Connect this hose to the middle of the "T-piece" and from the tee, connect two more hoses, one to the pressure gauge and the other to the pressure switch. Then connect a multimeter across the pressure switch contacts and set the meter to the minimum resistance/continuity setting. (Hopefully a setting with a continuity buzzer so you don't have to keep an eye on the gauge itself. That way you can focus more on reading the gauge to more accurately determine when the switch contacts are closing or opening. Make sure make sure your pressure switches are oriented vertically (the way you mount them in the oven. It's important. The setting is 8 oz. I don't know if lower settings would be better?) Now VERY CAREFULLY start opening the faucet (Too much water flow will cause too much vacuum and suck all the liquid out of the gauge!) WITH GREAT ATTENTION, SLOWLY increase the water flow until you see the liquid in the gauge start to rise to the level in the gauge, so be very careful. My article Onary baths have lever handles for faucets and I think they are the best because you can gently tap them with your finger to fine tune the water flow. I don't think round faucet knobs that you turn can provide the adjustment accuracy needed compared to lever knobs. As you slowly raise the column of liquid in the meter, you will eventually hear the multimeter buzzer sound. At this moment note the position of the liquid column on the dial and this is the pressure in "inches of water" at which the contacts inside the pressure switch close. In the reverse order, reduce the liquid level in the manometer, slowly reduce the water flow until you stop hearing the multimeter buzzer, and then note the pressure at which the contacts of the pressure switch open. Your pressure switches are working.