Quote Originally Posted by Bdadawg
As long as you are watering them out of a city water system (that has chlorine or chloramines in it) it will slow the algae growth. But with any water source algae will eventually grow, clear tubing would make it easier to see rather than waiting for the algae to block a drinking valve.

Bryan
The chlorine in tap water does help with the algae growth, and adding a little bleach to the reservoir water also helps keep it from growing. I add about 2 teaspoons to each 5 gallon bucket. Since doing this, I have less problems with leaky valves. I would also recommend setting up your system so that you can easily flush all of the lines. Flushing the entire system every now and again can save you a lot of headache and flooded bins too. Hope this helps.