Drainage Gullies

A drainage gully is used to connect outlets of wastewater and rainwater to an underground drainage system. Common household appliances that produce wastewater and can be fed into drainage gullies include kitchen sinks, baths, showers, and washing machines. When it comes to rainwater and stormwater, these are most often collected by a gully at the bottom of a downpipe, which is usually fed into the gully via a downpipe shoe.

All of our P trap and bottle gullies can be supplied with a hopper and grid (sold separately) on the surface which prevents debris, such as leaves, from entering the drainage system and creating blockages. They are also fully compatible with our range of 110mm drainage pipes and fittings.

Drainage Gully Traps

All of our drainage gullies are fully trapped, meaning they will not allow any nasty odours from wastewater to escape the drainage system and linger in your garden. Water will flow down through the body of the gully and out through a higher outlet on the other side. This leaves a body of water below the level of the outlet which any nasty smells cannot get through. Trapped gullies work much like the trap under a kitchen sink in this sense.

Bottle Gully

Bottle gullies are the most popular type of gully that we offer, mostly due to the fact that they can easily be rodded. The grid on top of the gully is removable, as is the central chamber. This means that any small pieces of debris that have entered the gully, such as dirt or grit, can be cleaned out by hand. Alternatively, a drain rod can be inserted in either end to help clean out blockages.

For more information, check out our full guide on how to clean out and rod a bottle gully.

P Trap Gully

A P Trap gully is larger than a standard bottle gully and requires a separate hopper to be secured on top to allow water to be fed in. Unlike bottle gullies, those with a P trap cannot be rodded with a standard rod to remove potential blockages, due to their shape. P trap gullies are available in both 90-degree and 45-degree variations.

Installing a Drainage Gully

Installing drainage gullies around a home is a fairly simple process; however, we do recommend consulting with a professional if you are unsure about the configuration of your underground drainage system. More information about installing drainage gullies on our website can be found in our article and video: Gullies - how, why and where to use them.

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17 Items

  1. Drainage Bottle Gully Circular Grid - 110mm
    1. Code BG510
    2. Brand PBSL Group
    3. Size 110mm
    Bulk Save - View Offer
  2. Drainage Bottle Gully Back Inlet Circular Grid - 110mm
    1. Code BG540
    2. Brand PBSL Group
    3. Size 110mm
    Bulk Save - View Offer
  3. Drainage Bottle Gully Square Grid - 110mm
    1. Code BG520
    2. Brand PBSL Group
    3. Size 110mm
    Bulk Save - View Offer
  4. Drainage Bottle Gully Back Inlet Square Grid - 110mm
    1. Code BG530
    2. Brand PBSL Group
    3. Size 110mm
    Bulk Save - View Offer
  5. Leaf and Debris Gully - 110mm
    1. Code D94G
    2. Brand Galeco
    3. Size 110mm
    £14.78 £17.74
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17 Items