METEX MD041-8 Ratwall Rat Blocker Instruction Manual
- June 1, 2024
- METEX
Table of Contents
METEX MD041-8 Ratwall Rat Blocker
Product Information
Specifications
- Product Name: Ratwall Rat Blocker
- Material: Stainless Steel
- Design: Robust with external hinge block
- Installation: Can be done with or without an optional installation pole
Product Usage Instructions
Installation with Optional Installation Pole
- Remove the cover of the manhole and flush a toilet to inspect drain operation.
- Compress Ratwall while screwing the installation pole onto the large thread.
- Screw the installation pole down firmly to hold the body in compression.
- Lower Ratwall into position within the manhole chamber and insert it into the pipe.
- Ensure the flap is free to move and opens in the direction of the flow.
- Test the drain by flushing the toilet to ensure proper functionality.
Installation Without the Installation Pole
- Follow the same steps as above, using the supplied nut instead of the installation pole to hold the unit in compression.
- Once in place, fully loosen the nut using a 17mm spanner.
Re-configuration for Chamber Inlet Protection
- Remove top brace piece using a 2.5mm Allen key.
- Rotate the flap by 180 degrees and secure it in place, ensuring it can swing freely.
- Re-install the brace in its original position with two screws.
FAQ
-
Q: Can Ratwall be used in both drain outlets and inlets?
A: Yes, Ratwall can be configured to protect both drain outlets and inlets by following the re-configuration steps provided in the manual. -
Q: How often should I check the Rat Blocker after installation?
A: It is recommended to check that the Rat Blocker is operating correctly during the first three months after installation and then periodically as part of routine maintenance.
INSTRUCTION
- Rat Blockers are designed to stop rats travelling through drains and are installed into pipes within inspection chambers (manholes.) They are usually installed into the drain outlet, but can be easily configured to be fitted into a drain inlet.
- Rat Blockers allow rats to pass freely downstream, but protect property by preventing their movement upstream. By installing a Rat Blocker into the drain outlet, all upstream branches are protected.
- Rat Blockers are robust stainless steel devices and are held securely in place with a tight friction fit. Due to their design with an external hinge block, Rat Blockers from Metex can’t become lost into the drainage line.
INSTALLATION INSTRUCTION
Ratwall installation is easiest when using the optional installation pole. Remove the cover of the manhole, then flush a toilet to inspect the drain operation. Holding Ratwall in one hand, gently compress the diameter while screwing the installation pole onto the large thread. Screw the installation pole down firmly to hold the body in compression. Holding the installation pole, Ratwall may now be lowered into position within the manhole chamber and inserted into the pipe in the manner described above. With Ratwall in place, unscrew and remove the installation pole. Test to ensure the flap is free to move and opens in the direction of the flow. Test the drain carefully by flushing the toilet 3 times with toilet paper and visually ensure that the paper and water pass the rat blocker.
Installation Without the Installation Pole
Installation without an installation pole may be done by following the steps
above and using the supplied nut instead of the installation pole to hold the
unit in compression. Once the Rat Blocker is located in its place in the pipe,
the nut should be fully loosened using a 17mm spanner.
Installation into Chamber Inlet – Orientation of Flap
Ratwall is factory configured to work within a chamber outlet, but can be re-
configured to protect a chamber inlet (with or without installation pole) by
undertaking the following steps:
Using a 2.5mm Allen key, remove the top brace piece. Remove the pivot pin (or
pivot bolt and nut). Rotate the flap by 180 degrees and secure it in place
with the pivot pin (or pivot bolt and nut), taking care that it remains free
to swing with no resistance. Install the brace in its original position with
the two screws.
Illustrated Installation
-
Figure 1. Compression
Tighten nut or use the optional installation pole to compress the body of the unit for an easy fit. -
Figure 2.
Ratwall installation into chamber. -
Figure 3. Benching
Remove Ratwall brace if uneven benching prevents an easy installation. -
Figure 4. Brace removal
Remove Allen key fixings. Lift upwards for removal.
IMPORTANT:
- The Rat Blocker can be easily removed and re-installed for drain cleaning and maintenance purposes. Ensure the installation instructions are followed carefully when re-installing the unit.
- During installation the warning label should be mounted visibly within the inspection chamber. During the first three months, it is important to check that the Rat Blocker is operating correctly.
- The Rat Blocker must be inspected and cleaned at least once a year. It is recommended that a service agreement is put in place for the inspection and maintenance of the installed Rat Blocker.
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References
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