What type of drain system can you install around the outside a fiberglass pool so that underground water will to main at deepest part keeping in mind sand?

A french drain system can be installed around the outside of a fiberglass pool to help manage underground water and keep the pool from浮力或破裂. Here's how to install a french drain system around a fiberglass pool:

材料：

- Perforated drain pipe

- Gravel

- Filter fabric

- Landscaping fabric

- Shovel

- Tamper

- Measuring tape

- Level

步骤：

1. 测量并标记区域：Measure the perimeter of the pool and mark the area where the french drain will be installed. The drain should be at least 6 inches wide and 12 inches deep.

2. 挖沟：Dig a trench along the marked area using a shovel. Make sure the trench is level and slopes slightly away from the pool. It can also be excavated by a small trenching machine for larger and longer jobs.

3. 铺设过滤织物：Lay down a layer of filter fabric in the bottom of the trench. The filter fabric will help prevent sand and debris from clogging the drain pipe.

4. 放滤镜管道：Place the perforated drain pipe in the trench. Make sure the perforations are facing down.

5. 加碎石：Backfill the trench with gravel. The gravel will help to distribute water evenly and prevent the drain pipe from collapsing.

6. 盖上景观织物：Cover the gravel with a layer of landscaping fabric. The landscaping fabric will help to keep the gravel in place and prevent weeds from growing in the drain.

7. 用污垢填充任何剩余的区域：Fill any remaining areas around the pool with dirt or sod.

By following these steps, you can install a french drain system around your fiberglass pool that will help to manage underground water and keep the pool safe and in good condition.