Also known as a Bottle Gully, a Compact Gully or a Universal Gully. ‘Access Gully’, if they permit rods to be inserted into the drain. Most gullies of this type are trapped, often by means of a baffle plate that is removable in some models.
This is a simple arrangement more commonly used with rainwater pick-ups (downspouts) than for draining large areas of paving.
This set-up is not trapped and is therefore only suitable for connection to a surface water system, not to a foul or combined system.
Again, this uses a rest bend with an adaptor coupling used to connect the downspout directly to the sub-surface system.