- yarm stockton on tees
heres mine you fill them with water till the water balances out at the red tape. fasten one at the level u require slacken the tops off and walk round and peg the ground where the levels match job done . they dont get any more accurate than that and easy to use . apart from setting out levels they used them on sites for setting up false ceilings before lasers came out . i just set the levels out on a large patio and pathway for bruv inlaw then he filled with dolomite and compacted it with my diesel whacker plate .What are these water levels you speak of !
I tried Google ?
I use a spirit level regularly.