dwhatley;110426 said:Jean,
You mentioned two people that squeeze into that tank - I would so want to do that - but you DID NOT say that you have done any of the inside cleaning ...
Actually when cleaning it's usually only one person! he other diver is outside on standby. Though we have had two people in the tank when it's been empty to repair rock work (spiny rock lobsters EAT artificial rock ).
I haven't dived in the tank, I don't have a SCUBA ticket (history of asthma) but I HAVE siphoned it. It has a special extra long siphon with a valve system and a long hose which leads under the tank to the plumbing, where there is an opening in the drain for it . Sodding awkward job as it has to be done at the top of a ladder and takes two people, one on the ladder and one below, directing where to put the siphon (you can't really see at the top) and to move the hose etc. Fun, fun, fun!!!