Backyard Pool Grotto With Slide and Hot Tub.

7,796

151

37

Introduction: Backyard Pool Grotto With Slide and Hot Tub.

Backyard pool grotto with slide
and hot tub.

Supplies

Preformed cardboard tubs, rebar, rebar wire ties, metal lath, burlap, pvc piping, high strength concrete, concrete block, Portland cement, clean sand, stucco mix, water proofing, paint, lots of time and patience.

Step 1: Digging Holes and Adding Cardboard Pilings With Rebar

Dig holes to 30" to 36" in depth in the desired location where support is needed. Install cardboard preformed round tubes and add 3 pieces of rebar spaced equally apart into the tubes and fill with high strength concrete. Make sure about 12" of rebar sticks out of the top of the preformed cardboard tubes.

Step 2: Attaching Rebar to Create a Structure

Attach rebar to poured concrete and rebar from the previous step, bend the rebar to the shape that you desire. Overlap and tie each piece of rebar at a minimum of 18" overlap and wire tie together tight. When creating the structure rebar should be no further than 8" from the next piece. Make squares. Use concrete block to form the hot tub. Install rebar inside each opening.

Step 3: Install Lath and Burlap

After the structure is complete with rebar you must add metal lath and or burlap to the inside of the structure. Cut small enough pieces and fold to put inside the rebar and use rebar wire to fasten to the rebar. This allows the concrete to stay in place. Also, at this step run electrical piping for lights and plumbing for any other water feature you are looking to create.

Step 4: Mix and Place Concrete Onto the Structure.

Mix high strength concrete and place on the entire structure. Use gloves and a shovel to place the concrete on the rebar and lath. Must be 3" to 4" thick. Be sure the entire structure is covered. For the under side or vertical walls mix on the thick side and throw on the lath and push in with a hand with gloves. Some will fall down but over time it will all be covered.

Step 5: Install a Final Coat to Ensure Water Proofing

Mix Portland cement with clean sand and stucco mix and cover the entire structure. 1 Scoop of cement and 2 scoops of sand and 1 scoop of stucco with water, mix thoughly. As it dries, use basic tools like trowels and/or imprint tools. Imprint tools can be a paint roller that has some dried concrete on it. When lightly rolled on the structure it will make the a concrete look like real rock. Where water will be running use a water proofing mix to ensure water will not enter the cracks in the concrete. Sorry, the photo is upside down.

Step 6: Paint the Structure

Paint the structure with the concrete paint found at home improvement stores. Use a light base coat to cover the entire structure first then darker colors to add highlights.

Step 7: Some Videos of the Finished Project.

https://youtu.be/sNKRn_RDLKw
https://youtu.be/o19_rsN2FxM
https://youtu.be/Z6QhKqTNXpw

Step 8: Turn on the Water

Turn on the water and enjoy your masterpiece. The neighbors will be jealous.

Stone, Concrete, Cement Challenge

Participated in the
Stone, Concrete, Cement Challenge

Be the First to Share

    Recommendations

    • First Time Author Contest

      First Time Author Contest
    • Backyard Contest

      Backyard Contest
    • Summer Fun: Student Design Challenge

      Summer Fun: Student Design Challenge

    37 Comments

    0
    adanchenko
    adanchenko

    10 months ago

    Do I need a permit for that?

    0
    forcnme1
    forcnme1

    Reply 10 months ago

    You need to check with your local building division.

    0
    jeff-o
    jeff-o

    Question 10 months ago

    Amazing results! I'd love to see more details on how you connected the pump to run the waterfall, and what you used to make the water slide slippery enough to actually slide! Ooooh, and more shots of the hot tub, too!

    0
    forcnme1
    forcnme1

    Answer 10 months ago

    When I had the pool built I had them pre run a second suction point. I designed the pool to build this. Many nights laying awake before the pool was to be built and many after I started this project.

    My pool is equiped with Jandy equipment and was able to fine a Jandy waterfall pump on line( no longer make them) and connected to the 2" suction and ran the flex PVC within side the rebar and lath. Where it comes out of the concrete you must use the waterproofing around the pipe which includes the hot tub.

    The hot tub can be used separately from the pool. We have pool heater and a chiller so I can turn some valves and just heat the hot tub. The hot tub will recirculate when in use.

    IMG_20200913_160711477.jpgIMG_20200913_160719272.jpgIMG_20200913_160723966.jpgIMG_20200913_160740904_BURST001.jpg
    0
    jeff-o
    jeff-o

    Reply 10 months ago

    Thanks for the extra details! It all looks amazing. You could add these extra photos to the instructable itself; they are fascinating! Loving the Jack Sparrow statue, too!

    0
    forcnme1
    forcnme1

    Reply 10 months ago

    The entire hot must have the waterproofing paint in it and around all the fittings. I used pool fittings and 1.5" pipe and flex pipe. Make sure you use two main drains in the bottom since you don't have a skimmer. That is for safety reasons. Hope this answers your questions. Thanks for asking.

    IMG_20200913_161327605.jpgIMG_20200913_161337281.jpgIMG_20200913_162158188.jpgIMG_20200913_162201036.jpgIMG_20200913_162204721.jpgIMG_20200913_160745382.jpg
    0
    forcnme1
    forcnme1

    Reply 10 months ago

    Forgot the slide. I first used fiberglass resin but that didn't hold up. Use Pond Armor paint for the slide or just high quality semi gloss concrete paint with many coats, I'd it peels sand and repaint. If your slide is steep enough it will be fine.

    0
    Bigwavedavee
    Bigwavedavee

    Question 10 months ago

    How did you figure water volumes?

    0
    forcnme1
    forcnme1

    Answer 10 months ago

    I just bought the largest pump that I could find. Jandy 125gpm waterfall pump. I wanted to make sure I had enough water. It works great. If I shut down the slide the water really flows of the waterfall. Thanks for your question.

    0
    BenjaminD110
    BenjaminD110

    10 months ago

    This is why I love internet so much!
    I can't believe what I am seeing, this it just incredible.

    0
    forcnme1
    forcnme1

    Reply 10 months ago

    Thanks and to be honest using the internet helps in many ways when completing a project. What a great time we live in.

    0
    BenjaminD110
    BenjaminD110

    Reply 10 months ago

    Agreed.
    And oh, by the way, I faved your instructable, because you know, one day.... Maybe..

    0
    PandaGirl123
    PandaGirl123

    10 months ago

    That is SO good you should design this stuff for a living

    0
    forcnme1
    forcnme1

    Reply 10 months ago

    Thank you.

    0
    Denise1941
    Denise1941

    10 months ago on Step 6

    Wow that is awesome. Love it😁

    0
    forcnme1
    forcnme1

    Reply 10 months ago

    Thank you. We enjoy it everyday we walk outside.

    0
    Jessee1991
    Jessee1991

    10 months ago

    May I ask how much that cost for reference? Thanks

    0
    forcnme1
    forcnme1

    Reply 10 months ago

    Thanks for you question.My costs were around 19k but if you had a professional build it that would be triple.

    0
    Mallymal
    Mallymal

    10 months ago

    You’ve got some incredible skills.... did you work at Disneyland or something?
    voted 👍