My block pond build
- Thread starter davemal
- Start date
I think the newer blocks are pushing salt through the tanking and that is pushing up the ph. Or I never fully sealed the lowest part of the pond so water is pushing through the bottom of the pond coming through the blockwork. Drain it down and try again … this time I have learned though.
Plastic ponds have just the opposite problem (crashing pH).....nothing is perfect.
Done some tests …. if uncured tanking causes water ph to go upto 12.6 !! after 24 hrs it goes upto 10.4 . Hope as it cures it drops lower. KA told me it was safe to fill after 24hrs cure time, if constantly wet I don't think it totally cures so I will fix water leaking in then retry. Got the water entering the pond down to half a bucket a day so wont take long. Hope to reseal and retry soon but will fill 2 feet at a time this time. Also I want to plant (hard with large carp) as plants will help keep ph down. Late in the season but I will add water lilies with large rocks around roots to stop carp digging.
Come up with an idea to plant water lilies in the pond so the carp cant dig and move them … planting basket will have large pebbles ontop of it. Holes in sides should let tench and small gold fish hide and get some quiet away from bigger fish.
