Pontus

I have never seen that label. Where did you see that? They are used all of the time to add support or hold spot loads. I had a remodel in Nashville that was floored using 2 x 8 on 12" centers. It met code but it had a bounce to the floor. We simply beamed down the middle of the floor and used these jacks to support the beam. This reduced the floor span by 1/2 and removed all of the flex. Anyway for $100 it will support your tank and you can remove them if you move.

Your floor is designed to meet a 40 lbs. per square ft. static load and to withstand another 40 lbs per sq. ft. of dynamic load. ( A 12' x 12' room will hold 40 x 144 or 5760 lbs. but it must be spread out) Based on your stand have\ing 12 sq ft. of area you should only load that area with 480 lbs. So you are over the designed load . You will not collapse your floor but it may deflect in the area of the tank. Go to home depot and by two jack stands and two concrete post supports. The jacks screw out so you simply put them under the joists directly under the stand. Or you can use two jacks and a beam to support several joists. I have experience in building and building inspection as well as a degree in mechanical engineering. http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CDQQFjAA&url=http%3A%2F%2Fwww.homedepot.com%2Fp%2FTiger-Brand-Super-S-8-ft-4-in-Jack-Post-J-S-100%2F100022783&ei=RUc8VLXoO4KUoQTsoICIDw&usg=AFQjCNHcqrsK6UTGOFSjILyDQx6Jpb6wDw

The idea is good, but who will enforce the regulations? We don't have any way to protect this area. It will be another mess, like the National Park Service, or Veteran Affairs.

Chevck valves will buildup and stick. So you need to mount it where you can clean it. Also, since yours is transarent, it should be sheilded from light to avoid algae growth. I avoid check valves if I can.

How many other members could meet on a week day? I wonder if there are enough to do a week day meeting or evening.

When you dose carbon you increase the bacteria levels in your tank. Not just the bacteria levels you want, but all and sometimes this results in disease and infection to inhabitants.

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