Doheny’s Blog – Repainting Inground Pools

by admin on May 11, 2011


A new coat of pool paint has many benefits for pools including helping to keep walls clean and free of algae, resisting pool stains, and improving the overall appearance of a swimming pool, increasing value.

Before repainting inground swimming pools, it is important to consider the overall condition of the pool and the time of year. If a pool requires a lot of maintenance, it may be necessary to hire a professional to do the repairs, or if the weather is too humid or moist, then the paint may have a harder time drying.

Preparing the Swimming Pool

Determine what kind of paint or sealant is currently on the pool. There are different types of typical coatings for pools: Rubber-based Paint, Epoxy Paint or Acrylic Paint. If you do not know what type of coating is currently on your pool, simply remove a paint chip from the wall and take it to a pool paint store to be tested.

Rubber-based Paint and Acrylic Paint tends to have a shorter life span than Epoxy Paint, only lasting two to three years, whereas Epoxy Paint will last five to seven years. However, the original coating that was used when the pool was built is most likely the optimal type, so it is best to continue to use the same type of epoxy or coating that is currently on the pool.

Note how many coatings are currently on the pool walls. Once there are more than two or three coats, it is time to sand down the walls and start fresh- if sanding, be sure to polish the entire area before sealing. Finally, before repainting a pool, repair and smooth out the walls by sanding cracks and patching any holes.

Utilize pool equipment to clean and empty the pool of all water and make sure the entire surface is completely dry. Clean out all leaves and debris. Depending on the type of pool paint or coating being used, you may need to thoroughly wash the walls with tri-sodium phosphate or a mixture of muriatic acid and water. Reference the directions of your pool paint or coating for specific instructions.

Calculate Amount of Pool Paint

Make sure to buy the right amount of pool paint or coating. Refer to your pool paint or coating for calculations or use the general Pool Paint Formulas to determine the total square feet:
Rectangular and Oval Pools L x W x 1.65 | multiply Length by Width by 1.65
Lazy “L” Pools  L x W x 1.5 | multiply Length by Width by 1.5
Free Form Pools L x W x 1.6 | multiply Length by Width by 1.6
Roman Style Pools L x W x 1.55 | multiple Length by Width by 1.55

Apply the Pool Paint

Rubber-based paints are self-priming. Epoxy paints usually require a primer before applying, especially on bare concrete. It is best to use a paint roller and apply long, even strokes to achieve a smooth surface. Start painting the deep end walls and work your way to the shallow end for an easy exit. The initial state of the pool surface will determine if a second coat is necessary. Starting with a clean, smooth surface should only need one coat. Again, reference the pool paint for specific instructions. Different paints require different curing and drying times. Consult the pool paint or coating for these times.

repainting pools before and after

After the pool paint or coating dries completely, fill with water and balance. Enjoy your beautiful, freshly painted pool!

No related posts.

{ 6 comments… read them below or add one }

C August 7, 2011 at 2:57 pm

Thanks for the info. I think we may be looking back at this site as we work on our project. Thanks again.


anthony May 20, 2013 at 4:52 pm

Can you buy the muratic acid at any major home improvement store!


Swimming Pool Paint February 12, 2014 at 11:56 pm

Thank you for this nice post. I do agree that repainting the in-ground pool is very important. It is efficient and low cost. I would to suggest you to use epoxy pool paint for swimming pool which can paint our pool to look better than its original. This pool paint cost is low and quality is much better than other pool paint. Preparing a pool plays a very important role before painting a pool to look nice and attractive.


Brian May 4, 2014 at 2:52 pm

Can I paint rubber base paint over acrylic. Paint not sure what paint is currently on the pool so I don’t want any surprises when I paint it


Bob Specht September 14, 2014 at 2:05 pm

Have 24 year old in ground pool that has been painted 4 times. Gunite bottom with fiberglass sides. Original paint was Epoxy, 2nd painting was Epoxy, not sure about the next 2 coats. Top coat is chipping badly. Looking to have pool sand blasted and then painted. Probably do the painting myself as have not had any luck with others painting it (where it went bad). Pool is lazy L shape, 40 feet long, 16 wide with 24 wide at lazy L area. Pool is 9 feet deep at deep end. Have a few questions:

After I have it sand blasted, do I still need to Acid Wash? What are the proper prep sequences before painting?

Should I use your Gunzite Epoxy Primer after the pool is sand blasted? How many gallons will I need?

Should I use your Zeron Epoxy Coating over the primer? One or two coats? How many gallons will I need?

Any other suggestions you might have?


freddie June 12, 2015 at 3:00 pm

can I find someone to paint my pool in the boston area north


Leave a Comment

{ 1 trackback }

Previous post:

Next post: