Baffled. Sewage eater.

driverman · Mar 30, 2015

Hi Guys. wondered if any of you guys have installed one of these or similar. It's a Marsh External compressor housing. Basically it for pumping sewage away and into an underground plastic cess- pool. Ground worker put everything in when doing drains etc.
SWA supply cable there and 2 x 16 amp skts. 2 x flexes. 1 flex for the air compressor and the other for the pump. No electrical drawings on site. I will try and search on the new later. There does not seem enough room to terminate a SWA cable. Thoughts appreciated

Des 56 · Mar 30, 2015

I had a similar set up a few months back,however,unlike yours,the pump was at the pit, the electrical gear was under a type of lid canopy
My swa was routed through the bell of the pit,looped back up through then strapped and terminated next door to the switchgear,my own adaptable box was used butted up to the switchgear

It ended up being secure after some playing around with fixings

rapparee · Mar 30, 2015

Is there any slack on the swa

driverman · Mar 30, 2015

rapparee said:
Is there any slack on the swa

What you see is it. The surrounding ground in soil. SWA in ducting, and no idea how deep the cable goes.

driverman · Mar 30, 2015

Des 56 said:
I had a similar set up a few months back,however,unlike yours,the pump was at the pit, the electrical gear was under a type of lid canopy
My swa was routed through the bell of the pit,looped back up through then strapped and terminated next door to the switchgear,my own adaptable box was used butted up to the switchgear

It ended up being secure after some playing around with fixings

Not too sure how to this. pump in pit + 1 flex for comp...looking at skts no room to get cables in

Darkwood · Mar 30, 2015

I would terminate the swa into an appropriate IP rated box then flex to each socket - on the assumption they are permanently powered by the sockets and are integrally controlled.... but worth checking with the manufacturers or the guys who dumped this crap on you (pardon the pun)

driverman · Mar 30, 2015

Thanks Darkwood, just been on Charles Austin (pump) web site and sent email with pics. hopefully info tomorrow. Likes the pun though!

driverman · Mar 31, 2015

Bit of an update really. Pump is in the pit. What you see in the pic is an air compressor.

TedM · Mar 31, 2015

I have something very similar here at home. The compressor runs 24/7 and the pump has a float switch built-in to run when the water level is high so both are wired as permanently live from a single circuit.

As darkwood says, terminate the SWA into an IP box and then feed the two sockets - assuming the compressor and pump are wired to those sockets under the lid.

Where does the other end of the SWA go?

rapparee · Mar 31, 2015

You can see the swa and two flexes. The flexes go into a commando plug each. The swa is obviously coming from the house/garage being the supply. Like darkwood says the swa should be terminated into an appropiate ip enclosure and then in two additional flexes come out of ip box to feed the commando sockets. If there is no room to terminate existing commando sockets you could always use trailing commando sockets or hardwire direct to the ip rated enclosure.

Leesparkykent · Mar 31, 2015

http://mayenne-satellite.com/yahoo_site_admin/assets/docs/installensignnew.36154006.pdf

is this the make of the system?

driverman · Mar 31, 2015

TedM said:
I have something very similar here at home. The compressor runs 24/7 and the pump has a float switch built-in to run when the water level is high so both are wired as permanently live from a single circuit.

As darkwood says, terminate the SWA into an IP box and then feed the two sockets - assuming the compressor and pump are wired to those sockets under the lid.

Where does the other end of the SWA go?

Thanks for replies guys. At this point in time, the SWA cable might be able to reach the con-unit, if not I could terminate it close to the Con-unit and extend it using T & E into the Con-unit. I intend to wire this on it's own circuit protected by it's own DP 10/30mA RCBO. I suppose I could use a DP switch where I extend the SWA circuit for means of isolation, although it could be said the RCBO offers means of isolation.

driverman · Mar 31, 2015

Leesparkykent said:
http://mayenne-satellite.com/yahoo_site_admin/assets/docs/installensignnew.36154006.pdf

is this the make of the system?

Thanks, downloaded similar this morning.

driverman · Mar 31, 2015

TedM said:
I have something very similar here at home. The compressor runs 24/7 and the pump has a float switch built-in to run when the water level is high so both are wired as permanently live from a single circuit.

As darkwood says, terminate the SWA into an IP box and then feed the two sockets - assuming the compressor and pump are wired to those sockets under the lid.

Where does the other end of the SWA go?

Ok been out of the game for many years. As Darkwood said....IP box,gland SWA cable into box. 2 x flexes using stuffing glands. As outside in an enclosure, would you recommend something like artic blue flex? Ideally I'm hoping there is room to fix the IP box. This day and age should I be using Wago connectors, din -rail?

TedM · Mar 31, 2015

Yes, I would use artic blue. Is there not plenty of room for a box under there? Put on RCBO as it is sure that the pump will die in time and trip out any RCD.