Exactly! I let way more pressure go to the low pressure guage than its rated for. I burried the low pressure gauge when I opened the co2 tank valve. Now when there is no pressure in the regulator, the gauge still registers about 30psi. Luckily I found the same used gauge on eBay for $10.
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Budget reefing is a pipe dream.
Current Tank Info: 190 gallon DSA mixed reef, 2 X 250W metal halides, 2 X 80w T5's, SRO 3000 skimmer, and a few other goodies under the hood
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