Super expensive vents smoke tests. Can this work instead?

pieroabcd

Hi,
Companies specialised in smoke tests to detect problems in the bathrooms vent system charge a huge amount of money for the test.
So far the cheapest that I've seen is 875+vat per hour.

If I use insert a steam machine with a decent pressure (4.5 bar maybe) in one of the drains in the wall and if the steam comes out of the vent pipe, can I assume that the exhaustion of sewer gases works?

Thanks

tacpot12

Steam isn't likely to work as it will condense too quickly. 

You can buy smoke pellets at Screwfix, and just need a way to inject the smoke that these produce into the bathroom vent. If you build a plenum (a box that you can set the smoke pellets in), and pressurise the box with a cheap fan, you can use a vent hose from the box to push the smoke into your bathroom vent system. You can buy and build what you need for around £100.

stuart45

A leaf blower will give you plenty of pressure. Or reverse a vacuum cleaner.