| Click to Post a New Message!
Page [ 1 ] |
|
|
Building pond--need drain valve
Meta, when we do the drain pipes on the ponds in golf courses we try to keep it all as simple and low-tech as possible.
If the valve is strictly to drain the pond, and you don't aticipate using it to lower the water level, I would suggest making up a gate valve.
This need not be anything fancy at all. A piece of pipe welded into the end of a slightly larger steel box with a track for the gate to slide in, a simple rubber gasket on the pipe side will seal quite well once the weight of the water is against it. The gate is operated by means of a lever which hinges up above, like the trap doors in the back of a dump truck. This also gives you a good visual check of the position of the valve.
BTW, if the control for the valve is at the top of the stand-pipe it discourages anyone from tampering with who doesn't have a boat or doesn't want to swim out to it.
Best of luck.
|
|
Add Photo
Bookmarks: |
|
|
|
Building pond--need drain valve
If you live in an area populated by beavers, there are some special precautions you need to take.
First, of all, merely screening an opening won't work. The grate must extend at least 3' away from the point where the water escapes, in EVERY direction, including below the surface.
Likewise, the outfall must be protected from being plugged, by a barrier at least 3' clear of the opening.
The cheapest and easiest product to use to make the grate is re-bar, it is soft enough to be shaped by hand, and is very easily welded into a cage after shaping. If welding is not an option, the same place that sells re-bar will have the heavy metal wire designed to tie it together when using it in concrete.
Finally, if you can arrange to have a hard, solid bank (boulders work well) of at least 2' in height, rising absolutely vertically from the water the beavers will have no easy way to climb out and will not find the pond a suitable home site.
Best of luck.
|
|
Add Photo
Bookmarks: |
|
|
|
Building pond--need drain valve
We built an automatic adjustable drain valve for a pond that was subject to huge volumes of incoming rain water during storm season.
It was basically a telscopic section of tube that went over the stand-pipe, a pivoting lever mechanism actuated the sliding section, at the outboard end of the lever was float. When the water level rose it moved the float end of the pivoting lever up, which caused the sliding section of stand-pipe to lower, thus allowing more water to drain faster. As the water level came down, the float did too, causing the slide to come back up to the normal position.
In that case they were afraid that if the pond wasn't drained fast enough it would top it's banks. In a worst case that could cause a bank to collapse, but at the least it would flood the course and close it till it could be dried out.
Best of luck.
|
|
Add Photo
Bookmarks: |
|
| |
|
Page [ 1 ] | Thread 114373 Filter by Poster: 5 | 2 | 3 |
|
()
Picture of the Day candoarms
Unanswered Questions
Active Subjects
Hot Topics
Featured Suppliers
|