Fiberglass Pools - Further Reading

• THIS IS A DRAFT WORK IN PROCESS *

Fiberglass Pools

Fiberglass pools may look like the installation should be simple with the pool premade. However the fiberglass pool shell is fragile until properly installed in the ground. There are many ways a fiberglass pool installation can go awry.

Here are some threads to learn about what can go wrong:

• Fiberglass Pool Install
• Bond beam/collar on fiberglass pool

And a successful but complex installation:

• New Construction (fiberglass) - Chicago, city proper

Construction

With fiberglass, 3/4" stone (no fines) is recommended for leveling the bottom and backfilling the sides.

Install a sump to deal with any water issues if they arise as well as the ability to monitor the ground water level. When you place that much stone around any structure in the ground there is always a possibility of it collecting water from surface or ground. If there are no apparent ground water issues you certainly don't need to place a pump immediately, However I would recommend at least getting a conduit from sump to pad so you can easily wire one up in the future.

Pool should not be shifted after it is set in the level gravel base. Do not let the pool be dragged if not properly placed. A little side to side sliding to settle in would be acceptable but you certainly would not want to see them lifting a side and packing stone under the edge.

When the pool is set double check the levels to make sure things are as you expect with the coping and deck. you should have a clear understanding of how it is set to confirm the pool is at the correct elevation.

It is very important to keep water at the same level as the backfill as it progresses upwards. They are sort of a balance act of wall support against each other, as they go.

When discussing the backfill just ask as a question how "how do you get the gravel all the way under the seat"? Just so they know you will be looking for it. There should be a lot of pushing and packing the stone under the seat. This of course should be done with some water already in the pool. That pool is so light that the could possibly lift it by packing stone under the seat.

I would recommend getting some water in there before any backfilling is done. Just putting stone beside that pool could shift it out of place or even a worker walking by and bumping it. Hopefully you can be present at the backfill. Once the pool has some water in and stone around it I would ask them to just double check the measurement off the walk edge. If it is not parallel with the walk it will stick out like a sore thumb when the finish work is done.

Put a 4' level on the pool edges and check that all sides are level. The industry spec is within 1 inch in 40 feet.

No machine should be within 3 ft of a fully filled and backfilled pool, even more distance when the pool is partially filled. also any machine should be a tracked unit not a wheeled machine.

A fiberglass pool gets locked into the ground with a concrete collar. You need a locking collar on a fiberglass pool. It keeps shell in place and there are fiberglass pins that anchor it to the concrete. Make sure they form it well and flush the top to make it easier for coping guy to lay his stone. Cant skip this step.

Normal install is a 12 to 18" ring around pool under the fiberglass lip with pins into the concrete. Some manufacturers require a 3’ locking collar. Check the pool manufacturers installation manual to confirm your requirements.

The coping guy glues to the fiberglass lip and thinsets to the concrete. Then pavers overplayed transitioning to a setting bed or concrete over the whole thing. If you want cantilever coping you can do the coping and ring in one shot keeping it thinner and save on a single pour and coping combo. It's kinda fuzzy but if pool guy is installing pool hes really only doing that and hence his price. The guy doing coping and deck usually does the ring from what I've seen with glass pools as everybody wants it left a different way based on deck material choice

Also make sure the landscaper knows what hes doing and can show you other coping jobs. Coping is the hardest part of the pool build it's not for amateurs that cut grass you want a Mason or hardscape guy.

Fiberglass pool manufacturers include:

• Barrier Reef
• Blue Hawaiian
• Latham
• Leisure Pools
• Viking

Maintenance

A Fiberglass pool should never be drained. It is very easy for a fiberglass pool to pop out of the ground if empty. If the water needs to be changed use the No Drain Water Exchange process.

Calcium in a Fiberglass pool

Fiberglass pools need calcium. The main function of calcium in the water of a fiberglass pool is to reduce the chance of staining. Primarily Cobalt staining.