Flowloc

Flowloc Video Presentation

Flowloc is installed within a chamber base, which in operation is non-man entry. All the key components can be withdrawn from ground level for maintenance.

Please select a video clip from below:

Riser clamps
Overflow pipe
Inlet filter box
Flowloc controller
Orifice plate

Riser clamps:

If required, a 2m or 3m pre-formed riser is available. To install the riser, a ring seal is fitted in the first groove before pushing into the socket of the chamber base.

To fit the riser, loosen the four riser clamps; lubricate the seal with silicone grease and push into the socket with steady pressure. Locate the riser clamps between the riser corrugations and tighten the nuts.

Overflow pipe:

The overflow pipe should be set at the invert level of the inlet pipe to the attenuation tank to avoid upstream surcharging and flooding.

Inlet filter box:

Allows high volume inflow. A 12mm course filter is designed to prevent debris from entering the flow control chamber. The fileter can be withdrawn from the ground level to cleam and subsequently re-position.

Flowloc:

The length of the 20mm pipe suppoed is bonded with solvent cement to the Flowloc unit using the 20mm connector. This handle allows the Flowloc vortex flow controller to be removed fromfound level for cleaning or clearance of blockages.

The removal of Flowloc open the full bore of the outlet pupe to allow stored water to be discharged. Once the Flowloc unit and filter box are removed, the inlet and outlet pipes can be accessed for rodding or jetting.

Orifice plate:

As an alternative to the Flowloc vortex flow controller, an orifice plate can be installed if very klow discharge rates are required. The orifice place is also fitter with a withdrawal handle for ease of maintenance.

Chamber Base

The chamber base can either be used 'in line' or 'off line' mode to filter and control water as shown below:

Depending on the required configuration and pipe sizes to be used, the appropriate spigot connection caps need to be cut off, but the inlet must always be connected to the spigot adjacent to the filter housing.

Connections

Inlet and outlet connections to the chamber base should be made with ring seal couplings prior to backfilling around the assembled unit with a bedding material such as pea shingle. Backfill to within approximately 300mm of ground level and check that the riser remains in an upright position during the course of the operation.

Riser

Should this method be selected, the 600mm riser must be fitted with the ring seal in the first groove before pushing into the socket of the chamber base. To fit the riser, loosen the four base clamps, lubricate the seal with silicone grease and push into the socket with steady pressure. Locate the base clamps between the riser corrugations and tighten the nuts. The riser should be cut back to within approximately 200mm of finished ground level, before casting a concrete collar with a bond breaker membrane around the top. An iron inspection cover and frame with a minimum clear opening of 750mm can then be bedded into mortar to complete the installation.

Filter Installation

Attach the end of the chain to the inside of the riser with the ‘P’ clip and screw provided, then lower the filter into the base so that it locates against the inlet.

Flowloc Installation

Using the solvent cement supplied with the kit, bond the 20mm pipe socket to the length of 20mm pipe, then bond the socket to the handle attachment on the Flowloc unit. Allow 10 minutes for the solvent to bond before lowering the controller into the base and engaging the square flange into the coupling slot. The handle can be cut to length to suit the installation depth. To set the overflow level, fit the 50mm pipe into the socket in the chamber base aluminium coupling and mark the pipe at a point coinciding with the top, or just below the top of the storage tank. Cut the pipe at this point and bond into the socket with solvent cement, then secure the open end to the inside of the riser wall with the pipe clip and screws provided.

Maintenance

Periodic inspection of the filter should be carried out to ensure that collected debris does not obstruct the inlet to the chamber base. Having raised the filter, any debris can be removed via the inlet port at the back of the filter box. Whenever the filter is removed it is advisable to clean the base of the chamber with a suction pump to ensure that it seats correctly on replacement.