While preparing the bunkers yesterday, our guys found a wash out spot where the drainage was broken and allowed some of the sand and gravel to wash through. The area isn't very large, but it is right where many people would enter the bunker. The pipe is currently full of sand and gravel, so we will attempt to flush that through with a hydra seeder. We can't tap into our irrigation system because it isn't charged up yet. If we aren't able to flush the sand and gravel through the pipe, we will have to dig the pipe up and replace it. If we do that we will probably just pull out all of the old drain pipe, gravel and sand and start over. It would be very similar to what we did to the bunker at 18 green last year. This bunker will be ground under repair until we are able to properly fix it.
This is the drain after Joe dug down to see what had happened.
When this was installed, the 4" pipe was dropped into the 6" pipe below it, however the proper fittings were not used, so they used expanding foam to fill the gap. The 4" elbow that dropped into the 6" pipe broke free, allowing sand and gravel the wash through.
As you can see, the pipe is currently sitting full of water.
Ian
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