Clamp Black

What are your thoughts about this sprinkler system problem?

I've had a recurring problem of leaks in my system. I use the black poly pipe (100 PSI) and ear clamps. I've found several instances of the pipe cracking close to the clamp (still over the fitting). I use mild heat (hair blower) on the pipe to get it to easily go on the fitting. Could this be the problem? Could I be changing the chemical composition of the pipe causing it to weaken? I've also used WD-40. Would warm, soapy water be a better method?

It sounds like that is exactly whats happening.I would use compression couplings.All you have to do with the new type is stick the pipe into them and tighten them.They work on all types of plastic or metal pipes.I had some plumbing issues awhile back and found out about them.These things are so easy that they'll probably put all the plumbers out of business.They work great and I haven't had a leak since.

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