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Discussion Starter · #1 ·
Going to be installing a chem shed/mix pad on one of our farms this winter. Installing a 2" water fill line. Anyone have any ideas on a frost free/self draining valve/faucet. Above ground was going to be a 2" ball valve with 2" camlock. Thoughts?
 

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I'm with southern. A 2" isn't large enough. You are pouring concrete, so you must have a 5-10 year view. Even if you are sure 2" is large enough today, it won't be when you get your next sprayer. You need a holding tank, preferably larger than your sprayer tank. Then use a 3" pump. It can even pump your chemicals.

Make an air gap with the fill hose for your holding tank above the overflow. This way there is no chance of backflow contamination.
 
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