Rainwater filter for installation before a rainwater storage tank in the ground. Also often used in river intake systems as the filter is self-cleaning.
The VF1 Rainwater Harvesting filter has a tried and tested two step cleaning process within it and is highly efficient independent of flow rates. Due to the steeply inclined filter inserts, dirt is continually washed to the waste water outlet. The cleaned water passes into a small collecting sump, from where it is led to the storage tank.
Suitable for roof areas up to 450m2.
The cleaned water can be used in non-potable situations, for example; washing machines, toilet flushing, garden irrigation, car washing, etc.
The Volume Filter is supplied with the Rainwater Supply pipe connection points (on either side of the unit) sealed so the installer can connect the pipes to the most appropriate side(s) of the unit. DN100 (4") pipe connections are recommended.
The Filter also has an optional DN50 outlet (2") for cleaned rainwater water for water top-up.
The filter is low maintenance and easily accessed by removing the top lid. The filter can then also be removed for cleaning. Twice yearly inspections of the filter are recommended.
The VF1 Filter is also available with the cleaned water outlet at the bottom of the Filter (VF1 Combi). The position of the Water Outlet means that the Filter can be installed on the top surface of a Rainwater Storage Tank, or within the ground before the tank giving you a high level of flexibility as to the direction for the Cleaned Water Pipe.
How It Works
- Incoming rainwater is equally distributed across the cascade.
- Larger dirt particles are washed directly to waste off the primary cascade.
- Pre-cleaned water then flows over the finer secondary sieve unit (at 0.65mm). Because of the specialist filter structure, fine dirt is rinsed to waste, and washes out of the waste outlets.
- The cleaned water flows into the collection tank.
- The dirt that has been filtered out is washed to waste.
- Pipe Connections:
- 2 x Rainwater Supply Inlets DN100
- 1 x Outlet to Storage DN100
- 1 x Outlet (optional) to Top-up (DN50)
- 1 x Outlet to Waste DN100
- Height Difference between Inlet and Outlets 300mm
- Dimensions Overall: W: 470mm, D: 490mm, H: 451mm
- Housing Material: Polyethylene, Colour: Blue
- Preliminary Filter Cascade: Polyethylene
- Fine Filter: Stainless Steel
- Filter Mesh 0.65mm
- Weight: 6.2Kg
Telescopic Extension Tube - 1000560
In Rainwater Harvesting Systems where this Filter is installed within the turret of the storage tank or in the ground before the tank, the Telescopic Extension Tube gives access to the Filter from ground level or from within the manhole.
The Telescopic Extension Tube increases the height of the unit by 250mm to 750mm. Extension Tubes can be connected together for even more height. Multiple Extension Tubes can be connected together to give even more height if necessary.
Long Removal Handle - 1000550
A Long Removal Handle is available for easy access to the filter insert in deep installations (some drilling required). Priced on application, please get in touch.
If your query is related to an existing order please email in with your order number in the subject line. If you have a new residential enquiry please consult the online guides before calling as they may answer your question.
The delivery information page is divided into 1. Specific and 2. General delivery information below.1. Specific Delivery Information relating to product lines
- Small items dispatched daily with RM24 ~85% arriving next day
- Large items (UK made) typically 5 - 15 working days (Parcelforce/APC etc)
- 1,000 litre compact underground rainwater tank
- 250 litre Prestige large Plant Pot style planter Grey
- SAR40-TOP2 Wastewater Lifting station
- 250 litre Classic Slim Wall Water butt
- Green Roof sedum tray - pre planted option
We're a Manchester based company and ship to the UK at our standard rates. Please get in touch requesting the delivery surcharge value if you are based in the Highlands or a UK island.
We no longer support ordering from the EU and Northern Ireland through the website. We can support ad hoc orders with limited liability.
Our design and Prestige range is available in the Netherlands, Ireland, Belgium, France, Germany, through our distributors.
Stock items will be dispatched on the day of order, if ordered before 1pm.
Letters are sent 1st class.
Parcels <2kg are shipped with Royal Mail 24 Tracked with the following target delivery times.
Guaranteed delivery can be arranged by advance agreement. This agreement is back to back with the courier and we will not be liable for any delays as per our terms.
A loss/replacement can only be pursued in line with the target delivery times of the courier or once the courier accept loss.
Bulky items (and pallet deliveries) are dispatched within 2-15 working days. We will request a contact number if this has not been provided at checkout.
Some items are made to order (bespoke) and details are given on the listing for dispatch times. If for any reason we anticipate a delay on our normal dispatch time we will contact you to let you know.
Occasionally there are delays. We shall not be liable for any direct or indirect losses, costs, damages or expenses incurred by you or any other person for any delays in delivery.
Missed deliveries where attempted delivery has been made usually result in re-deliveries the following day. The customer is responsible for organising re deliveries by contacting the courier direct.
Parcels/deliveries can only be "left out" if the delivering company allows that option. Parcelforce, for example, do not allow a parcel to be "left out".
We are an environment centric business and as such we try to minimise our waste. Our packaging is usually recycled and/or recyclable and we make efficient use of packaging to minimise wastage.
Covid delivery updates between 12.3.20 and 11.1.21 21 have been archived here.