I have a ceramic pot that looks to be about ten gallons in size and it
doesn't have a drain hole at the bottom. I was thinking of placing rocks
and sand at the bottom for a base and setting a five gallon plastic pot
on top of that and then filling in the rest with potting mix. I was also
considering drilling a hole in the bottom of the pot myself. I presume
that's possible. Has anyone else confronted this type of problem and
have advice to give?
If it is a valuable antique pot don't drill any holes in it. You can
drill a few holes in the bottom using a concrete drill, slow speed,
and water for cooling/lubricant. For a pot that large, get or make a
dolly so it can be moved around.
I have a lot of very large pots and containers (20-50 gallon size) and I use
those Styrofoam packing peanuts instead of rubble, rocks, broken pottery,
etc. to fill the bottom. To keep the soil from sifting into the peanuts I
lay down a layer of coffee filters to cover them before covering with soil.
This is very helpful in 'lightening up the load' of big pots. Make sure the
peanuts aren't the biodegradable kind. If they get wet you'll just end up
with a small flattened, soggy, gooey, congealed mess. If in doubt run some
water over a peanut first to test it. Color and shape no longer distinguish
which are which.
I'll add to what the others suggested about drilling. If the bottom is
concave at all, back it up with a block of wood so that the bottom is
resting solidly where you will drill. Slow and easy and even easier
when it begins to go thru.
Do not attempt to do this job with a large masonary drill, almost
guaranteed to FIU.
Search <tungston carbide grit hole saw>.
With pottery use the small pilot hole to cut from both sides.
You could use rotary dremel drill.
This tool is a favorite of mine. Good for many things.
I never tried ceramic, they have drill bits for ceramic tiles.
All can be found at most hardware stores.
read this before project.
Good with your project ... Dan
Email "dan lehr at comcast dot net". Text only or goes to trash automatically.
Sheldon. There is a device called a star drill. Uses a hammer or a
sledge hammer. I used one to punch holes in my basement floor. Also
does concrete blocks.
Not applicable for Billy's job for sure.
I know what a star drill is, I've used them, all sizes... still they
are rotated after each hit... that's why they are called a star drill
rather than a star chisel (although I've seen them listed as star
There are many ways one can make a large hole in pottery but I think
the type of hole saw I indicated works best (pretty much idiot proof),
that's what's used by various trades people for making holes in
various hard brittle glass-like materials. If one is skillful and
very experienced with machine tools a trepanning tool will work too.
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