> For the complete documentation index, see [llms.txt](https://docs.synergyreef.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.synergyreef.com/installation-manuals/rm-sump-installation/rm34-sump-setup/installing-a-redsea-reefmat-500/option-1.md).

# Option 1

{% hint style="warning" %}
You only need the bottom portion of the RM500 when connecting the plumbing. Remove the top roller part first! This will give you plenty of room to connect it to the sump or tank drain.
{% endhint %}

1. Remove one of the 1" bulkheads from the sump. 
2. Use the included Tube from the RM500 and push it thru the bulkhead opening where you removed the the bulkhead. 
3. Connect the RM500 to the screw fitting on the black tube. 
4. Put the ReefMat 500 into the sump.
5. Then pull the black tube slack up and connect the end of the black tube to a 1" PVC pipe or directly to your tank drain. 
6. Reassemble the top portion of the reefmat to the bottom of the reef mat and load your roll.

 The RS tube will slip over 1" PVC and how it was designed to work with their tanks. See Figure A.1 for details. 

<figure><img src="/files/SbEAK3HlmGsu785Qfsrr" alt=""><figcaption><p>Figure A.1 Option 1 </p></figcaption></figure>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.synergyreef.com/installation-manuals/rm-sump-installation/rm34-sump-setup/installing-a-redsea-reefmat-500/option-1.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.