Closed top bags take a LONG time to dry. Closed top bags should be hung with the tube side down so it can drip. Open top bags should be hung right side up for best dripping and air access. An open top bag will obviously dry faster. You want it to dry fast, so make your final rinse with hot water and shake it out the best you can.
Closed top bags can be filled with detergent, like dishwasher detergent because it doesn’t foam and cleans very thoroughly. Rinse the bag a few times with clear water and hang it upside down to drip dry. It should be very easy to clean a four quart Klystra bag. The top opening is pretty large. First, take a wet, soapy sponge and drop it into the bag, which should already be wet and soapy. Then make believe you are going to "fist" your bag. That means extend your fingers and tuck your thumb into your palm, just like the initlal anal fisting position!
If you're cleaning the bag, you should soap up your hands, so they will slide easily into the bag (just like fisting so once you're in, you can just rub your hand against the entire inner surface (again, just like fisting).
Anyway, once you've thoroughly wiped the inside with the sponge, gently remove your hand (you know, just like. . . ) and rinse the bag. The rubber of the bag should easily allow you go do this. If your forearm feels tight against the rim of the bag, remember you can use your other hand to push the bag against your hand inside the bag so all surfaces can be wiped. You shouldn't have any problem with this. After use, fill your bag with very hot water and flush out the colon tubes and hoses very well.
Soap and water or bleach diluted 1:5 or even 1:10 with water is fine for cleaning enema equipment. Boiling is not necessary.
To scrub the inside of tubing, you can take a long piece of bare copper wire (longer than your tube) from the electrical department of a hardware store and bend a very tight loop on BOTH ends. The first loop is to make sure the wire end is smooth and the other end is used to crimp on a tiny piece of gauze or sponge. The wire is first threaded through the wire al the way to the other end and is used to pull the end with the sponge or gauze attached all the way through the tubing. That will effectively wipe the inside walls of the tubing. You may need to experiment a bit to find the exact sponge size to pull through the tubing. Start with a small piece and work up in size if necessary. You don't want a piece of sponge falling off or getting stuck inside the tubing.
Colon tubes, double balloon rectal catheters, and other tubes should be hung straight and vertically, NOT coiled until they are completely dry. Coiling will dramatically slow down drying and promote mold growth.
I often clean the bag and tubes in the shower, with the exception of a double balloon rectal catheter. The double balloon rectal catheter has to be cleaned in the sink and the valves kept dry.
Our S&M / enema equipment room looks like a meat locker with everything just hanging straight down from hooks. None of our equipment is ever stored coiled except for our ropes.
The use of grapefruit seed extract is a lot of bunk. Here's my post and it contains a scholarly, scientific, refereed journal reference:
http://www.enemas4fun.com/forum/index.php?topic=532.msg7593;topicseen#msg7593
http://www.enemas4fun.com/forum/index.php?topic=532.msg7593;topicseen#msg7593
http://www.ncbi.nlm.nih.gov/sites/entrez?db=pubmed&uid=10399191&cmd=showdetailview&indexed=google