so I take it swimming wasn't on for today, how did the trip to Mannum go, did you use the free camp, what did you think of it

there's only three ways that water can escape from a tank (1) overflow too low or leaking (2) inlet leaking (3) leaking tank, what I would do if you have access to an air compressor, doesnt matter what size, fill the tank and then pressurise it through the filler, you will have to make up a plug with a hole to fit the air line in the centre of it to snuggly fit in to the filler hole, pump it up to about 15 lb and crawl under to see what the problem is you should be able to see or hear the leak if not try 20lb, I wouldnt go much higher. it may take two to do it, you may be able to do it with a tyre pump (hand or foot operated) if the problem still persists, take the tank out and go over it, there may be a crack at the top. when we stayed in mannum the weather was a balmy 32 deg. we just sat in the shade and every now and then we wandered over to the boat launching area and sat in the water, lovely spot