Quote:
Originally Posted by mert34
Like he said look for a valve off the main line inside that's closed. Mines right off where it enters the house before my water softener and such.
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If you have open drain valves you'll notice when you open the main inlet to the sprinkler system ( mine is next to the house main by my furnace)
So open the main and if you have already open drains close those. Done. You'll get air through em as it fills up. Keep an eye on it for the first day or two to check for leaks since it froze early last year.