Have noticed a few posts about problems with zinc buckets and flower food. Have quite a handy tip if people are having problems finding suitable liners. Simply paint the inside of the zinc buckets with "Boat Varnish" giving them a good couple of liberal coats. Wait for first coat to dry before doing the second, taked about a day to fully dry and harden and voila bucket problem solved.
The fact that it's designed to withstand saltwater, means that flower food will not affect it at all.
Hope this helps anyone having probs!!
