Clogged Pipe Sensor

At 1% slope, they aren't needed.

Hi Guru, Thanks for response.So far space constraints in ceiling is concerned,I feel it may not be possible to attain 1% slope in some section of pipe. I would appreciate to know if such system is in use anywhere and manufacturer producing such sensors.

Not in the UK. Wastewater drainage requires a minimum slope and this value is contained within the Building Regulations. Drainage systems are inspected by the local Authority's Building Inspectors, before back-filling, as part of the planning process that encompasses building construction. Failure to obtain approval before back-filling will require re-exposure of the drainage system for inspection before a Completion Certificate is raised. Without the Certificate, insurers can refuse to provide indemnity and fire cover, and the building owner will be unable to sell, as well as exposing him/herself and/or the builder to prosecution for failing to follow the Regulations.

So such a sensor is still unneccessary.

Anyway. The hypothetical sensor says the hypothetical pipe is 60% clogged. What happens next?

(GA) Sir Slack, that explains why your are paid the big bucks.... Lol

You might eliminate the need for such instrumentation by putting a more realistic pitch on the pipes. 1% slope is only 1/8" per foot. In the USA most plumbing codes require a minimum of 1/4" per foot (approx. 2% slope). More pitch would increase the velocity which would make the system more self-cleaning and therefore less likely to get clogged.

Without more information concerning proposed flows, you may never get up to a velocity of 2ft/sec with a 1% pitch.

Don't forget to unclog them first!!!

"Clogged pipe sensors" ????

In the middle of a gravity system???

I don't understand what a monitor in the middle of the piping system is going to tell you ? When the pipe clogs, it will clog rapidly....you will have no time to react

What about a "float" sensor/alarm in the floor (or what ever) that is being drained ?

How about a flow switch at the terminus......it will tell you when there is no more flow ?

Thanks to all the participants. What I can conclude from the comments received is that its better to take care at design stage by maintaining proper gradient, pipe dia and self cleaning velocity so that clogging does not occur and requirement of clogging alarm does not arise . Please correct me if am wrong With thanks to all of you again.