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| My goodness, that is pretty. Did you get a picture of the basin before plaster? That drain concern is significant. I find it hard to believe that the plaster team plastered over it. These guys are pretty skilled at doing this. I suspect something else may have happened. What size pump is driving the weir? That is a fairly substantial length. Are you looking for a sheer effect into the basin or expecting the water to run down the wall and into the basin? The edge needs to be withing a 32nd of an inch of level for a minimal amount of water to be needed. That looks like it's only within a 1/4" at best and possibly under powered. If the drain issue is real, that may also have an effect as the drains may be partially blocked and an insufficient flow may not be possible until the issue is corrected. It may also present an unsafe submerged suction situation. What did you use to plaster? Different finishes have different start up procedures. Getting your own proper test kit is something I encourage all my customers to do. I have found pool store tests to be less than accurate on many occasion. Hand held electronic testers really don't cut it for homeowners. Adding di-chlor and stabilizer is a great way to overshoot desired stabilizer levels in a pool. I personally prefer to use unscented bleach such as Clorox or other brand that is labeled 5 or 6% for elevating the FC level after the 1st few days and for the next couple weeks during a new plaster start up. If you have an erosion feeder, then tabs are appropriate. The use of added stabilizer is discouraged in this situation as tabs add this as they erode. The type of plaster finish is important here though. While builders can build some beautiful pools, that doesn't mean they can care for them properly. I know of several that are like this. They don't want to know. They would prefer to turn on the system and move on to the next project. Purple Stuff may not be needed if there are no metals in the water. Wasted money if that is the case. Test for iron and copper first. If it is present, find the source. If the test indicates the presence, then it's appropriate. Know the raw chemistry of your fill water. This will help you predict your usage need for certain balancing chems as you go forward. Knowing your pools needs will help you maintain a safe, refreshing, and sanitary body. As I mentioned before, a proper test kit will be crucial for your pool's needs. It will also help you measure a weekly service's ability to maintain your pool should you decide to go that route. Hiring a service does not absolve you of the responsibility. It is still your pool and not all maintenance teams are equal. Scott |
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| It is a gorgeous pool. Hope it all comes together and you are swimming soon and forgetting about all of the headaches! |
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| shellip, The uneveness of the flow is pretty typical for negative edge pools. It's common to have to grind a few spots to get it correct. Pool looks good. I'm glad you were able to get the PB to make things right. You'd be surprised at how much a Polaris bag will hold. I hate having put the electric cleaner in and out of the pool. |
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- Posted by coastal_concepts (My Page) on Fri, Dec 9, 11 at 13:34
| The correct method to building a long edge negative edge like this is to use a level that accounts for the curvature of the earth...seriously. If you shoot a laser or use an elevations transit (very likely they used this) then you will always get this problem. This must be the first long negative edge that the company has built since you learn about this problem really quickly when you start the pool up... The best work around that I can give to any person or contractor reading this is to install two or three individually controlled return jets directly opposite of the negative edge during construction. This will give you the ability to control the flow of water heading to the wall...elegantly simple solution to a big problem if you add it during the construction phase. Def find out about the covered drain and find a water lab in your area that you can use for a second opinion when you have chemistry questions. |
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| "use a level that accounts for the curvature of the earth" I keep mine next to my wire stretcher, and my left handed pipe bender. The perfect level is called a water level. It doesnt lie. Having jets firing across the pool to make the edge run right, disturbing the once quiet water....... the thought makes me sad. And by the way, very pretty pool. |
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| shellip....awesome pool....Congrats! Agree with just-a-pb...our builder used a water level for our 16 foot negative edge...no problems with an uneven water sheet over the edge. Hope this helps. |
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- Posted by coastal_concepts (My Page) on Wed, Dec 14, 11 at 16:58
| A 16`negative edge is not a big negative edge. 40`or more is where you really start to get into trouble. Adding return lines opposite the negative edge is just prudent when you build a lot of these. All the careful tile setting in the world will not prevent the water from missing a tiny section on a large negative edge on occasion. It is just prudent to install additional returns to achieve a perfect visual effect. To be clear we are not talking about jets shooting across the pool here. We are talking about 1-2% more water heading in the right direction. Sheesh guys, |
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| The gunite team should have asked about the one drain line. Did the gunite team make drain pots formed in the gunite? You can't have a single submerged suction outlet. They need to be plumbed in pairs, should be tied in the basin and then run to the pad. I am not convinced a 1 HP pump can provide enough flow given the amount of head loss. Scott |
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