Not sure if this is right place to post this question but here goes.

I bought a piece of 4 inch black drain pipe (they type with no holes) from Home Depot and want to put it in the pond so the fish can have a place to hide in the winter when there are no plants. I have cut it in two and sanded the corners so there are no sharp edges.
My question: is this safe to put in the pond?

The pipe is made out of the same material as this: http://www.usplastic.com/catalog/product.a...duct%5Fid=17570

Thanks again!

I wouldn't see why not, it's not going to leach anything into the pond. It's certainly a denser plastic than the big pot I plan on dropping in when the floaters die off.

It should be ok. All plastics will leach minute levels of plastisizers and monomers which are toxic but the levels they leach should be so small as to not make a difference (not detectable even at say 10 ppb) in any pond over a few dozen gallons. I used to have a black plastic T pipe in my 50 gallon tank for my pleco for a while (he didn't use it). PVC pipe (polyvinyl chloride) or polyethylene like the one you linked to are pretty inert. Any piping meant to be used in a human drinking system should be pretty safe.

Hi guys I've been thinking of putting a bit of pipe in to sounds like a good idea, I've also got a water hawthorn that goes crazy in the winter covers most of the pond so you might want to give that a try, you also get some lovely white flowers that sit just out of the water :D

You can add it to the pond it wont bother anything. There's nothing in your pond that would be toxic enough to break plastic down. It will act like those expensive Koi Kastle you see.

Well when I tried to add the pipe to the pond I didn't think about the fact that they would float. :blink: Really, it should have been a no brainer but oh I guess you have to have one :D I will have to put some rock on top of them to weigh them down when I get a chance so they will be of some use to the fish. Little fish hotels for the winter ;)

Thanks for the help btw.

Ha Ha T! That was funny! Your pipe must be lighter than mine because mine sunk. I even use a chunk of it to hold down my decoys in the BIG pond!

KK, I wish it would have sunk. If I wanted it to float it would have sunk for sure :blink: I don't really like the idea of putting rocks on top but that is the way it goes sometimes. My pipe has a wall thickness of 1/4 inch. Is that about what yours is? Yours is black plastic too???

Poor TLC I can just see your puzzled face like darn .....try to fill it with water and back up it comes. I will ask hubby what pipe will sink he does all that stuff for a living I will ask when he gets home.

Hey T, Mine is about 1/4" thickness as well and about 5" across (diameter) and just standard black PVC, I think like the sewer pipe kind????