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CISTERN—How to Build. 2
Remarks. —If the Portland cement, which is the best water-lime, I think, in use, is obtained, or the best water-lime which can be got is used, there can be no doubt of the success in soil that does not cave; but in clay soil, they claim, nothing but tubs built of plank will keep out the surface water. This may be so, but it seems to me, even on clay, 2 coats of a mortar made with the best Portland cement would keep the surface water out as well as it would keep in what comes in by the spout. It would save much expense
if successful, which, I fully believe it would be. Any plasterer would know the proper amount of clean sand to use with it.
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