How to repaint concrete pool?

Dina21

Would appreciate step by step instructions for DIY for my concrete pool which needs a repainting.

I understand that this will require acid clean initially.

Thanks

Dinesh

EricL

Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about painting your pool.

You are right that an acid clean is part of the process, but before you start it is important to understand that pool paints are quite unforgiving if the surface is not prepared and coated correctly. The exact steps will depend on the brand and type of pool coating you choose, however the general DIY sequence for a concrete pool is as follows: empty the pool safely, thoroughly clean and degrease the surface, remove any loose or flaking paint, acid etch the concrete, neutralise and rinse, allow the shell to dry completely, identify the existing coating and choose a compatible paint, then apply the number of coats suggested within the correct recoat window and finally allow adequate curing time before refilling.

Doing it yourself might seem appealing because the steps sound straightforward, but in reality this is where most DIY jobs fail. Pool coatings are extremely sensitive to contamination, moisture and incorrect application. If even a small amount of residue, chalked paint, algae or trapped moisture remains in the concrete, the new coating will not bond properly. This is why many DIY finishes blister, peel or flake within the first swimming season. Another major issue is choosing the wrong type of paint. If you apply an incompatible coating over your existing one, the new layer can soften, wrinkle or react chemically, ruining the finish and forcing a complete strip-back, which is far more expensive than hiring a professional from the start.

Letting a professional repaint a concrete pool is generally considered the better option because they understand how critical timing, weather and preparation are to a successful result. Professionals use commercial cleaning systems, proper acid-etch equipment, moisture testing tools and correct safety procedures. They also know how to work around local climate conditions, including humidity, temperature changes and early morning dew, all of which can ruin a fresh coat if not managed correctly. This level of experience and equipment means the coating adheres properly, cures evenly and lasts longer, giving you a more reliable and durable finish than what most DIY attempts can achieve.

If you need further assistance, please let us know.

Eric