I live in north central Texas. It doesn't get real cold here, but we do have our moments - remember last year's Super Bowl? Last year was our first winter with the pool. I did not close it and the freeze guard protected everything. All went well except one thing. The overspray from the waterfall and the bubblers froze onto the pre-cast concrete coping and stayed there for several days. Later in the year when things began to warm back up, the coping began to crumble. I believe this was caused be the frozen salt water.
I would like to leave the pool open like I did last year, but close the water features pump. However, I cannot find any instructions anywhere on how to do this. The intake valve is right at ground level, so I think I would be ok closing that off and not worrying about water in the intake pipe. But how do I get the water out of the return pipes? The waterfall has eight small outlets instead of one big one and the bubblers are underwater. Is there a way to blow the water out from the pump side? If so, how do I cap off the bubblers? Will capping them while air is being forced through the pipes cause too much of a pressure buildup?
If there is no way of doing this, I suppose I could shut down the return valves until there is just a trickle of water to minimize the overspray, but then I'm afraid of building up to much pressure in the lines. Is this possible?
I attached a picture of the pump in case that would help at all. If this was answered somewhere else, I apologize for the duplicate post. I just could not find the answers anywhere. Thanks for your help.
[attachment=0:gepzlrux]Water Feature Pump.JPG[/attachment:gepzlrux]