What side of the extraction pump do you fit the condensation trap?

Depends on your duct work and fan type. If I’m using an in-line fan, I fit the fan at the exit point and run the duct work down hill away from the fan. The trap is then fitted just above the ceiling vent/entry point, as close as possible to the lowest part of the duct run but high enough to maintain a fall on the condensate pipe. If I’m fitting a ceiling fan, I run the duct work down hill towards the fan with the trap between the fan and the rest of the duct work. The trap should be fitted vertically for best results. The condensate pipe also needs a water trap or similar if it’s been run directly in to a waste pipe. This is to avoid odours entering the duct or bathroom.

What is the internal diameter?

It has internal longitudinal ribs that hold a 100mm (exterior diameter) pipe, when you push it home. The actual internal tube diameter seems to be 110mm but that is complimented by a removable collar at each end that makes the pipe fit snugly. Hope that helps.

What size is the small drain pipe fitting

32mm solvent weld pipe will solvent weld to this if you pull the rubber stopper out. Nice fit. I originally had ‘over flow’ pipe going into the rubber stoppper. Think it was 21.5m, then used an adapter I found to convert it to 32mm pushfit (went into a fitting such as elbow etc) but much neater and more permanent now it’s solvent welded straight into the 32mm. Less serviceable but if it needs any serving I’ll just replace.

will it work with flexible ducting?

I bought a 100mm flexi duct adapter from B&Q and it worked a treat

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DOMUS 40497.0 100mm EasiPipe 100 Condensation Duct Trap with Overflow

Product ID: 62551214

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Details

Brand
DOMUS
Material
Plastic
Finish type
Polished
Manufacturer
Polypipe
Global Trade Identification Number

💨minimizes air leakage

📏100mm precision fit

🛠️rigid plastic build

Description

💨 Domus 40497.0 – Trap the condensation, not your airflow!

VERSATILE APPLICATION - Perfectly suited for bathrooms, toilets, and utility rooms—upgrade your space with confidence.
PRESSURE DROP MINIMIZATION - Reduces airflow resistance, boosting ventilation efficiency and energy savings.
OPTIMIZED FOR SILAVENT SYSTEMS - Specifically designed to maximize efficiency from Silavent ventilation appliances, ensuring top-tier air quality.
PRECISION ENGINEERED 100 MM FIT - Ensures seamless integration with your ventilation system for optimal performance.
LEAK PROOF RIGID PLASTIC DESIGN - Manufactured to exacting tolerances to virtually eliminate air leakage and maintain system integrity.

The Domus 40497.0 100mm EasiPipe Condensation Duct Trap with Overflow is a high-quality, precision-engineered plastic ducting component designed for bathroom, toilet, and utility room ventilation systems. Its rigid construction minimizes air leakage and pressure drop, enhancing the efficiency of Silavent ventilation appliances while ensuring reliable condensation management.

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Fantastic and great service. Shipping was faster than expected.

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The product quality is outstanding. Exactly what I needed for my work.

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Manufacturer	Polypipe
Part Number	40497.0
Product Dimensions	10 x 10 x 10 cm; 259.99 g
Item model number	40497.0
Finish	Polished
Material	Plastic
Item Package Quantity	1
Batteries included?	No
Batteries Required?	No
Item Weight	260 g

DOMUS 40497.0 100mm EasiPipe 100 Condensation Duct Trap with Overflow

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