BB wrote:
I picked up an old fiberglass (I'm pretty sure) spa complete with
associated plumbing and such from Craig's list for nothin'. I hope to be
able to turn it into a new pond. But before I plunge ahead and make
blunder after blunder, I have a couple of concerns about what the heck to
expect.

I converted my old spa into a koi pond. It served well for over 15 years.

How should I seal up the holes in the sides where the jets used to be?
Should I remove or somehow use the skimmer box? I've filled it once and
there are no major leaks (Yippee!!!) just around one of the jets and on
the skimmer where it attaches to the spa proper.

I didn't seal up the holes, although I did block off the skimmer box with
some rocks and stuck rubber bathtub drain plugs in the large water outlets
(to keep nosey little fish out of them). I left all the old plumbing in
place, but never used it. Put in a submersible pump, wrapped in furnace
filter in a small milk crate, biobead filter and UV. Used plastic rain
gutter for my waterfall.

I don't really know what else to ask; I'm just hoping that others might
have done this sort of thing and can let me learn from their mistakes or
successes.

(It'll replace the current 35 gallon tub at the base of a cascading set
of 2 half-barrels. The spa should hold about 400-500 gallons.)

Sounds like a fun project. Maybe some pics of the process? Mine was 8' x 8'
x 3'.

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