+1<a href=showthread.php?s=&postid=12851817#post12851817 target=_blank>Originally posted</a> by kau_cinta_ku
aquahub.com or autotopoff.com been using mine for 3 years and never had a problem.
<a href=showthread.php?s=&postid=12852864#post12852864 target=_blank>Originally posted</a> by Crawf71
OR....... you can make your own for 1% of the cost of a tunze and it works just as well.
Visit http://www.melevsreef.com/plumbing/auto_topoff.html
Marc gives a very good description on how to do it.
Chris
<a href=showthread.php?s=&postid=12853318#post12853318 target=_blank>Originally posted</a> by bach2pilot
I use a pressure activated switch and a tiny rio pump. I works like a champ (2 years) and costs very little $.