I just wanted to let you know that it is possible to do much more than 5 gallons with a colema board. It is best if you have a partner that can come in and refill your solution container without you having to get up. The company I bought my board from also sells something called the ez fill it attaches to your faucet, goes through a filter and in to the hanging container. So all you have to do is reach over and turn on the sink to do more then 5 gallons. I regularily do 10 to 15 gallons. I have done both at home and with a professional, and I feel I get the better results at home, mainly because I am much more relaxed.
I also know that there is a new container on the market that goes with the board I have. It is called the continuous flow. It attaches to your faucet, filters the water, but it is different because you leave the water running and the pail continuously fills for as long as you want to cleanse. It has some kind of valve that keeps it from overflowing. It is quite a bit more expensive then colenema board alone. I am saving for one now.