C02

Hello all,
Pretty new on the forum, but I was wondering how long a 50lb c02 tank should last in a 12x12x8 grow room.
Im using a regulator and setting the ppm for around 1250. I have had to fill it twice and it hasn't even been a month. Some of the articles I was looking at online said a 50lb tank should last several months. Im thinking the valve maybe faulty and I may have to go to a control unit that measures c02 and disperses it.

All depends on how much escapes your room

At some point, the temp or RH will get to high and you have to exhaust - It sprays to reach your set point after that.

How many times a day does this exhaust happen?

Every cpl of weeks - sounds about right...... A 4x4 tent has longer tank life! You have 9 - 4x4 tents worth of space......What does that tell you?

Explain in greater detail, just how this set up runs? How are you spraying? How often a day? Got your temps and RH set to what?

I take it your not running a controller? Better to have one!

What dr. Said.

I had the same issue as well and I quiet spraying because I couldn't control heat and spray. Now I do a diy sugar and yeast co2 generated deal from week 3-6 of flower.

I use a ventless heater let the pilot light run 24/7 cost nothing to run natural gas keeps the ppms up . best affordable co2 generator you can buy. 100 bucks with a built in low oxyjen shit off . if you had a fuzzy logic controls and your room was sealed running 12/12 your co2 would last possible 4 months with the tank your talking . I don't trust those cheap regulators junk. Look into a auto pilot co2 controller. With fuzzy logic keeps the exact desired co2 not dips at all only use fuzzy logic with a tank .never a burner .

Of your in a sealed room (which u should be running co2), you should be have a very good ac unit PLUS a deheuy. Both will allow you to do a fully sealed, NEVER needing to vent/exhaust. I don't, nor have I ever exhausted a sealed co2 room. If you do, why even bother?