Gr8KarmaSF;535284; said:ive always let rain water fill my pond with nothing bad ever happening,
thou im not sure about SoCal rain. that place isnt exactly the cleanest air and water around...lol
you could always test some rain water and see how they measure up to the existing pond.
(there that ought to lend alot of credibilty to Gr8KarmaSF
)
or settle for something you can see accross?Dr Joe;535331; said:(there that ought to lend alot of credibilty to Gr8KarmaSF
)
.

blacksmith37;535468; said:When it rains , I mostly let it rain. You , and neighbors are the biggest danger, that is herbcide, insecticide, etc used in the yard. If you ignore the part in the book , like I did , and build it where runoff can get in. Floating plants overflow out but the fish seem to go down during rain ; I have had a few swordtails go exploring a few hours after thr rain ends and get out.