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What could be eating away two-year-old plaster in a gunite pool leaving brown spots all over?
Wiki User
∙ 17y ago
I am no expert but I do manage a pool out in Nebraska. In my experience I have seen this happen from one of two things. The first was from the water being infected with an algae bloom or some other water related outbreak. This can eat at your paint or plaster if it is not taken care of in a timely manner. The other cause could be the chemical balance of your water. If your water becomes to acidic it can cause erosion of your pool walls and your recirculation equip. This is very common in Aluminum pools but I am assuming that it could have the same effect on a gunnite pool as well. If you maintain perfect water chemistry all the time this could help alleviate the problem. If it is not one of these two things then I guess I am as stumped as everyone else.
Wiki User
∙ 17y ago
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How long should gunite last?
Gunite can last for decades with good soil conditions. Plaster is the part that needs to be redone periodically, but maintaining proper chemistry will allow your plaster to last much longer.
You are in the process of building a new pool and you are at the gunite stage they did the gunite 2 weeks ago and you noticed that there is rebar and wire ties showing in the gunite is this bad?
Rebar and or ties exposed in a gunite/shotcrete pool shell is bad but not unrepairable. The exposed steel can rust, and may bleed through the plaster leaving a stain. It may also cause the plaster to delaminate in that area. To remedy the situation the rebar and ties should be cut back or ground out and into the concrete. Hydraulic cement can be used to patch over the areas before the pool is plastered.
How can you determine what your inground pool surface is What is gunite?
Gunite is covered with plaster. It is sprayed on concrete sorta. They mix it in the hoses and it is blown on. You can go to youtube and see them gunite a pool. I am only aware of plaster, vinyl or painted pool surfaces. The vinyl is just like thin rubber.
What if you didn't water your gunite for 2 days?
By Gunite I assume that you were told you have a gunite pool, The gunite part is the foundation of the pool and does not require watering. The surface which is plaster over the top of the gunite needs water. If you just had your pool replastered in the last couple of days it is critical to fill it with water so the plaster can dry. If your plaster is older and been under water before a few days is not going to hurt. Although you do want to get it full of water as soon as possible. Kenny Kummer Brody Chemical
Can a crack in the plaster of a gunite pool be repaired and if so how effective will the fix be?
I general, the answer is yes. It the crack comes from the pool moving, and the gunite has cracked, then the gunite has to be repaired before the plaster. Sometimes opening up the gunite crack and refilling with concrete will answer the problem. If movement of the soil is the problem then that has to be fixed first.The soil getting excessivly wet and dry can mean that the pool will move, if it is only part of the pool then there will be a structuaral crack. Only opening up the crack will tell you whether it is a plaster crack or a gunite crack. A replaster is from about $2000 up and structuaral repairs from about $1000
Can areas of exposed concrete on the bottom of a gunite or plaster pool be repaired with water in the pool?
No, because gunite will not dry if it is constantly being mixed with water. Drain your pool first.
What is the name of the material found directly underneath the plaster surface of a swimming pool?
It is know to be concrete, gunite or shotcrete.
Why is the plaster on a gunite pool gray in the middle and white on the gunite side and white on the outside?
The finish plaster is normally white all the way through. It sounds like you are dealing with a pool that has been replastered by the method of putting a "brown coat"/"scratch coat" (the gray plaster you noted) over the original finish plaster surface, and a new finish coat of white plaster on top of that. The scratch coat more like a thin concrete than plaster (doesn't have the white marble dust in it) and is used to get a better bond to the old surface.
After gunite and before marbelite can you line the pool with poly or a tarp to keep the water from leaking out?
The plaster would not adhere to the liner. k
Is gunite waterproof or porous?
If your builder knows what he is doing it should be waterproofGunite is not waterproof on its own. It needs a final waterproofing by means of plaster or paint.
How can you determine if a crack in a gunite pool is surface or if it is structural?
I would think if the the crack is present only in the plaster, and not the tile, it may be surface. If, for instance my pool, has a cracked tile and the crack is extended down the side of the plaster, it is structural.
Is it acceptable to have hairline cracks in the plaster finish Diamond Bright of a new gunite pool or will it leak?
The hairline cracks in the Diamond Bright will not cause the pool to leak. You must have got plastered in hot weather and the plaster cured quickly. It is just cosmetic on the surface and not through the entire layer of plaster.
