Aquatic Plants Digest V1 #62
From Thomas Price <tprice at u_washington.edu>
Aquatic Plants Digest V1 #61
>> So I have two options.
>> - play the odds that I won't have a catastrophic failure, flooding my
>> apartment and killing all of my fish.
>> - use a $1 check near the top of the tank to stop reverse flow.
On the second option, CO2 will melt the normal plastic check valve in time.
Suggest you go a tad higher and get a brass check valve.
Doug Valverde 75051.160 at compuserve_com or dvalver at ibm_net