It would appear as though you don't have much stone in the mix. As a tip for anything that is meant to hold fluids, add a chemical to the concrete mix called Xypex and also Silica fume. These are waterproofing compounds. We supplied concrete for the local swimming pool about 2006 and we had to add that. No leaks or weeps since.
It would appear as though you don't have much stone in the mix. As a tip for anything that is meant to hold fluids, add a chemical to the concrete mix called Xypex and also Silica fume. These are waterproofing compounds. We supplied concrete for the local swimming pool about 2006 and we had to add that. No leaks or weeps since.
Use 6.5 sack concrete and pour forms upside down