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fckinder

Gunite won't stop weeping, can't plaster!

11 years ago
last modified: 11 years ago

We started excavation last Sept, it's May and we have yet to plaster. I live in central Texas, lots of limestone, they basically had to chip/carve vs dig -- it took many weeks and several repairs to the digger. I worried beforehand that my property had drainage issues, the grass was green all winter and spongy/moldy during the wet and rainy periods of winter/spring. The properties behind me sit higher up, as does the back corner of my lot (about 3-6' with a retaining wall), the pool sits in front of the retaining wall.

PB felt groundwater would go around the pool and drainage would not worsen as result of pool, but put a French drain behind the retaining wall toward the right side of the house (I think the left side may be lower/more natural flow tho). There was no water during the dig, steel, plumbing, or gunite phases. After the gunite (in Nov) we had more significant rain begin and the water started coming up from the bottom and sides of the shell (not just the back side of the pool, the other side near the house too). There have been several hydrobond applications, holes were drilled to release potential built-up water flow at the largest weep areas, the right skimmer was raised several inches, and we pump and pump and pump. It is better now that the weather is warming up, only a few inches overnight vs 12", the weeping dries a bit during the day, but increases/lengthens overnight -- the bottom has never been completely dry. We are assuming this is a seasonal water table and I'm willing to wait it out another month or two if we have to. PB is willing to do more digging/drainage mediation if necessary, and I feel horrible that I am likely his loss-leader for the year! Presuming it is seasonal and goes away soon so we can plaster without further drainage "assistance," is this a long-term issue or a non-issue for the integrity of the pool/plaster if we don't address now? If it doesn't dry up in the next month or two, do you have suggestions beyond filling it back in and consuming mass quantities of fermented adult beverages?

Comments (12)

  • PRO
    11 years ago

    The leaks around the lights can be stopped with hydraulic cement. The other leaks are due to improper shotcrete application. You most likely have a sand lens where the water is leaking. You need to pull out that section of shotcrete and re shoot. I always put Mira Drain on my pools that are at the bottom of a slope or hill. Mira drain is used on basements for example to wick away water from the concrete and direct it to another place. A water proofing agent can help but it all starts with the P.S.I. of the shotcrete. All concrete is permeable to water . That's why the ACI requires certain minimum requirement for swimming pools. A drainage sump under the pool may also help.

    You can make a pool water tight with proper shotcrete application.


    fckinder thanked Aqua-Link Pools and Spas
  • 11 years ago
    last modified: 11 years ago

    Thanks, I know they used that type of cement to fill the holes that they drilled to allow some of the water to escape in the weep areas. I believe he said the plaster doesn't adhere well to that cement though and they have since scored all areas with hydraulic cemented holes. Will look into your other suggestions above. It started drying out fairly well at the end of April (see below) , but recent rains have taken us three steps back now!! If it dries on own with warmer/drier weather and we don't remove/replace shotcrete, is my plaster going to be short-lived when the rains return every year?





  • PRO
    11 years ago

    I wish I had more info, many weeks to dig? Maybe Fountain Hills in Az solid rock. Raised skimmer? Your gunite looks good, what PSI ? This is 100% a drainage issue. With this leaching issue yes more drainage. 8 months? Is there a hydrostatic valve @ main drain for ground water? Rust from your rebar will make its way through the plaster. Stick with your beverage and this is all fixable. Swimming soon.

    fckinder thanked premier pool plumbing
  • 11 years ago

    Did you ever get to plaster?? Curious as we are in a similar position with our pool in Texas.

  • 11 years ago

    It looks great! I really like your water line tile choice.

    fckinder thanked julieleek
  • 11 years ago

    Thanks Julie! Of course, I had to look at everything and obsess about it, but my eye kept going back to the random mosaic. So glad I listened to my gut and went with it!!

  • 11 years ago

    Been waiting since January for plaster also. Same issues as you but my builder is offering NO help or ideas. Your story gives me some hope that we may be swimming this summer!!

    fckinder thanked Alison Shaver_Mirra
  • 11 years ago

    Alison, FWIW, I asked about what would happen if didn't resolve on it's own & plastering twice, as if in a remodel, was mentioned as a last-resort option. (He may have said "bond coat," but I'm not sure if I am remembering correctly.) If I had known that was an option and could have had it finished months sooner for a few thousand extra, I think I would have done it!!

  • 6 years ago

    I plastered swimming pools for seventeen years and have seen just about everything under the sun when it comes to pools I’m a white plaster finisher and certified Pebble Tec applicator first of all your builder should have installed a bed of gravel below the gunite second placed a two inch pvc pipe into it full of holes and a hydrostattic valve level with the main drain plaster crews get a Honda 5 hp pump hooked up to hydro pipe clean pool as always blow torch walls and mix a hot batch of cement (pure) no sand plenty of calcium so it’s hot make sure pump is on at all times the object is to get all water to come out of one hole slam hot cement into weep holes and it will dry if it’s hot enough with the pump running and the hose through the main drain ring start plaster or pebble that pool will finish I’ve seen and participated in too many to mention in and around water here in the Central Valley good luck enjoy I hope I was of help to builders plasters and home owners alike ✌🏼 PEACE!!!

  • 5 years ago

    OP: Can you give an update? We're in this situation now.

  • 5 years ago

    Us too! any suggestions would be helpful