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neptune431

Starting Member

1

Tuesday, March 16th 2004, 4:10pm

Install Valve Box

Two days of digging and I have exposed 3 valves. Yes! When I install the (NEW) plastic valve cover box does it need to rest on a bed of crushed rock (for drainage?) or just let it sit on the dirt..? Thanks. PLR

HooKooDooKu

Supreme Member

2

Wednesday, March 24th 2004, 3:28am

At www.irrigationtutorials.com , I believe it discusses that the rock serves two purposes.
1. Keep moles out of the box
2. Provide a foundation to prevent the box from sinking over time.

aquamatic

Advanced Member

Posts: 230

Location: USA

3

Wednesday, March 24th 2004, 3:41am

Absolutely ! It promotes good drainage, isolated your manifold from dirt which can be a mess whebn servicing. We also lay a layer of black bed liner, then lay in 2 " of 3/4 stone. This will prevent any weeds from growing through also.

Do not use anything smaller than a 3/4" stone. ANy smaller can get in your lines easy when servicing.

drpete3

Supreme Member

Posts: 375

Location: USA

4

Thursday, March 25th 2004, 7:12am

good tip on 3/4 inch stone.
Thanks,

Pete

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