I have a twinwall polycarbonate cover on my GH, and even though I use a 1%
bleach spray monthly, I find it helpful; to pull out the big guns every now
and then - a pressure washer.

--

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"WNeptune" wrote in message
...
Any advice on cleaning the inside of a greenhouse - top, sides and all?




There AINT no easy way.
I scrub mine down (14x28), twice a year, slap and dash in the spring, and
complete in the fall, by hand, using about 10% bleach and some type of
detergent.
I try and keep it free of algae throughout the year by spraying the glass,
benches and walks every week with one % bleach. AND, good housekeeping all
year
long.
I have tried a power washer, but as I have a Lexan liner, it just does not
work.