This is a 275 gallon tank ($85) that contained food grade silicone. It was easily cleaned out thoroughly. The pipe going into it is from the gutter off the back of the roof which is slanted toward the back. The gutter runs directly into a larger pipe type of downspout which is plugged. When the downspout fills up, it "spills over" into the pipe shown here and fills the cistern. This water will be filtered and used for showers and dish washing. Flickr - Photo Sharing!
11 Plumbing Tricks of the Trade for Weekend Plumbers
Choose Caulk, Not Putty - Despite the name, lots of plumbers never use plumber's putty. It damages some types of plastic and stains surfaces such as natural stone. Plus, it tends to dry out, crack and allow leaks. Silicone caulk is a safer, longer-lasting sealant in most areas where you might use plumber's putty.