The message
from "michael adams" contains these words:

Normal soap and shampoo contain phosphate which is a
plant nutrient which is essential for photosynthesis.
You can tell this, as eco-friendly versions are marketed
as being phosphate-free. As too much phosphate in the water
table can cause problems. Using bath water in the garden
where any phosphates will be taken up directly by plants
therefore is a good idea. Provided the water is
distributed around the garden at least.

My grape vines get my bathwater, but in 10 gallon batches, siphoned
through a skinny tube.

--
Rusty
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