Roz Posted February 21, 2019 Share Posted February 21, 2019 What is the difference between a distribution chamber and an inspection chamber? To be placed between the septic tank and the soak away. Distribution chambers, when googled, seem to come up very expensive. Link to comment Share on other sites More sharing options...
scottishjohn Posted February 21, 2019 Share Posted February 21, 2019 (edited) I think the main difference is that an inspection chamber is basically a hole to look at the pipe going in and out of the chamber a distribution chamber will have one inlet AND an umber of outlet connections --usually 4 for the soakaway perforated hoses so its fitted where the main grey water pipe meets the soakway field this is my understanding of it Edited February 21, 2019 by scottishjohn Link to comment Share on other sites More sharing options...
ProDave Posted February 21, 2019 Share Posted February 21, 2019 Between the septic tank and soakaway is usually a sample chamber, one pipe enters, thre is usually a small drop and another pipe exits. the idea being SEPA / EA or whoever can drop a container in and take a sample of your effluent Here is the first one I found doing a quick search. https://www.wplinternational.com/optional-extra/wpl-sample-chamber/ Link to comment Share on other sites More sharing options...
scottishjohn Posted February 21, 2019 Share Posted February 21, 2019 the design of your soakway field will determine which you need or if you need both Link to comment Share on other sites More sharing options...
Roz Posted February 21, 2019 Author Share Posted February 21, 2019 This was what I found when looking, which just seemed expensive when compared to the inspection chambers!https://www.drainagesuperstore.co.uk/product/underground-sampling-and-distribution-system-chamber-110mm.html But then found this.. https://www.drainagesuperstore.co.uk/product/polylok-standard-4-hole-distribution-chamber-with-flat-cover.html and i don't understand why the difference in price Link to comment Share on other sites More sharing options...
scottishjohn Posted February 21, 2019 Share Posted February 21, 2019 8 minutes ago, ProDave said: Between the septic tank and soakaway is usually a sample chamber, one pipe enters, thre is usually a small drop and another pipe exits. the idea being SEPA / EA or whoever can drop a container in and take a sample of your effluent Here is the first one I found doing a quick search. https://www.wplinternational.com/optional-extra/wpl-sample-chamber/ how goes the 50mm pipe problem dave Link to comment Share on other sites More sharing options...
ProDave Posted February 21, 2019 Share Posted February 21, 2019 On ours, we just did the "distribution" underground with a few tee connectors, @scottishjohn waiting for the Italian pump to arrive. Link to comment Share on other sites More sharing options...
ProDave Posted February 21, 2019 Share Posted February 21, 2019 24 minutes ago, Roz said: This was what I found when looking, which just seemed expensive when compared to the inspection chambers!https://www.drainagesuperstore.co.uk/product/underground-sampling-and-distribution-system-chamber-110mm.html But then found this.. https://www.drainagesuperstore.co.uk/product/polylok-standard-4-hole-distribution-chamber-with-flat-cover.html and i don't understand why the difference in price It's the difference between a Trabant and a Rolls Royce. They both do the same thing, but the quality, and the price. The cheap one does not look very deep to me, I am not sure it would have worked for us. The treatment plant outlet was 700mm down and then another 100mm ore more step for the sample chamber, you will be looking at about a metre down. 1 Link to comment Share on other sites More sharing options...
Roz Posted February 21, 2019 Author Share Posted February 21, 2019 48 minutes ago, ProDave said: It's the difference between a Trabant and a Rolls Royce. They both do the same thing, but the quality, and the price. The cheap one does not look very deep to me, I am not sure it would have worked for us. The treatment plant outlet was 700mm down and then another 100mm ore more step for the sample chamber, you will be looking at about a metre down. I think ours is about that depth too. I might just ask the builder to sort out the distribution chamber from the merchant! Is non-woven geotextile the right option also by the way? It's more expensive than woven so wanted to check before I committed. Link to comment Share on other sites More sharing options...
bissoejosh Posted August 8, 2019 Share Posted August 8, 2019 I'm now at this stage but I have a 32mm MDPE feed to the sampling chamber as we have a pumped outlet. My thinking is just drill a hole in a normal inspection chamber sidewall to locate the MDPE and provide a easy to access sample point then use normal T connectors to branch the 110mm pipe out across the distribution field. Can anyone see an issue with this? Link to comment Share on other sites More sharing options...
PeterW Posted August 8, 2019 Share Posted August 8, 2019 Use Y or 45 degree connections for your drainage field. And what you suggest is ok but angle the MDPE into the chamber at 45 degrees so it doesn’t spray up the wall when the pump runs. Link to comment Share on other sites More sharing options...
ProDave Posted August 8, 2019 Share Posted August 8, 2019 12 minutes ago, bissoejosh said: I'm now at this stage but I have a 32mm MDPE feed to the sampling chamber as we have a pumped outlet. My thinking is just drill a hole in a normal inspection chamber sidewall to locate the MDPE and provide a easy to access sample point then use normal T connectors to branch the 110mm pipe out across the distribution field. Can anyone see an issue with this? If you have a pumped system, the holding tank with the pump is the sample point, or in our previous pumped system the sample point was in between the septic tank and the pumping chamber. I have never seen a sample point installed in this location with a pumped system. Link to comment Share on other sites More sharing options...
bissoejosh Posted August 8, 2019 Share Posted August 8, 2019 13 minutes ago, ProDave said: If you have a pumped system, the holding tank with the pump is the sample point, or in our previous pumped system the sample point was in between the septic tank and the pumping chamber. I have never seen a sample point installed in this location with a pumped system. That makes sense, I need to take a look in the treatment plant and see . I still need to drop the 32mm into 110mm for the drainage field though and this could double as an inspection point if needed. That is unless a fitting that converts 32mm MDPE to 110mm exists which I doubt. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now