FIRST air cannon robots PVC??

[Doug G]

Originally Posted by RyanN

Just a suggestion, if you get a sprinkler valve that is rated at 24 volts, don't run it in series with a spike. The spike leaks enough current to keep the valve on after releasing your firing button, and it will not work right with only 12 volts. We use 3 9V batteries in series going through a relay connected to a spike and it works well for us.

We are using a 24 Volt Sprinkler valve, and we thought about how to hook it up to the spikes or a separate battery source like the 3 9V option. But then we tried making it work with just the 12 Volts - and walla... no problem. we've been running this way for the past year. Also polarity (forward or reverse) doesn't matter on most these sprinkler valve solenoids as most of them are meant for 24 V AC. We've switched polarity on ours and had the same results.