---
title: Fiberglass Pool Installation | Plumbing Encased In Stone To Prevent Plumbing Settlement
description: Unlike sand, the right stone backfill will not move or settle. This creates a condition for long-term plumbing success.
---

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# Plumbing Encased In Stone To Prevent Plumbing Settlement

[ 1.  Stone & Foundation Backfill ** ](https://www.riverpoolsandspas.com/installation-crushed-chipped-stone-backfill-material)

[ 2.  40 PVC Hard Pipe ** ](https://www.riverpoolsandspas.com/installation-all-schedule-40-pvc-hard-pipe)

[ 3.  Plumbing Straps ** ](https://www.riverpoolsandspas.com/installation-plumbing-straps)

[ 4.  River Rod ** ](https://www.riverpoolsandspas.com/installation-rhino-rod)

[ 5.  Plumbing Encased in Stone ** ](https://www.riverpoolsandspas.com/installation-plumbing-encased-in-stone)

[ 6.  12" Concrete Collar ** ](https://www.riverpoolsandspas.com/installation-concrete-bond-beam)

[ 7.  8" Dewatering Pipe ** ](https://www.riverpoolsandspas.com/installation-sump-pipe)

![](https://www.riverpoolsandspas.com/hubfs/Plumbing-Encased-in-Stone.png)

[** ![How-Much-Backfill-Is-Needed-for-a-Fiberglass-Pool](https://www.riverpoolsandspas.com/hs-fs/hubfs/How-Much-Backfill-Is-Needed-for-a-Fiberglass-Pool.jpg?width=320&name=How-Much-Backfill-Is-Needed-for-a-Fiberglass-Pool.jpg "How-Much-Backfill-Is-Needed-for-a-Fiberglass-Pool") ](https://www.youtube.com/embed/1bPFGC7G6oM?rel=0&autoplay=1)

 How Much Backfill Is Needed for a Fiberglass Pool?

Unlike sand, the right stone backfill will not move or settle. This creates a condition for long-term plumbing success.

**Related Content:** [How To Prevent A Nightmare With Your Swimming Pool Project](https://www.riverpoolsandspas.com/blog/how-to-prevent-a-nightmare-with-pool-installation-project)

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