Instruct: Classify the given Amazon review as either positive or negative.
Query: As is - these are not very good. But with some modification - perfect.

We bought several of these for our different store locations. First issue is that they are not quite wide enough to use in a half wine barrel. not sure if a whiskey barrel is an inch more narrow - but it isn't quite snug enough with the half wine barrel. Second issue is that the water has no where to go - so unless you drill some holes in the bottom of these they will get too heavy and fall through into the barrel. Our solution was to get a block from home depot - like the ones used for block walls. Put it under the liner to hold it up. Then drilled a few holes in the liner so they could drain. Now they work perfect.