RO unit connection

EFJ · 4 Feb 2017

This my new RO unit. Just want to make sure is the top connector the discarded water and the bottom connector the ro water. Dont seem to be getting water at the bottom on but only from the top one.

viper357 · 4 Feb 2017

Yes, top one is the waste water, do you have a flow restrictor on the waste line? It looks like it but pic is a bit unclear.

EFJ · 4 Feb 2017

Yes I have one. I think the pump feeding the ro unit is a bit small. Added a booster pump to the line now it is helping but not as it should be. Will need to install a bigger pump.

viper357 · 4 Feb 2017

Is it a proper RO booster pump? You need some really good pressure for it to get through the membrane.

EFJ · 4 Feb 2017

It is a ro booster pump. I had it with my previous ro setup.

EFJ · 4 Feb 2017

Water is flowing better now.

EFJ · 5 Feb 2017

I am very upset. Even buying a new unit doesn't guarantee you wont have problems. My floor was flooded thanks to one of the fittings popping off. The thread was stripped where the fitting screwed in. Now I had to clean all the water up. Was busy till 2am this morning. So as a word of caution to everyone. Check that all your fittings are fastened properly before even using it. I will be taking all the fittings off and will be installing them using pvc glue on the thread.

srecho · 5 Feb 2017

Not to sound contradictory but I would put PVC tape in case that you want to strip it in future

EFJ · 6 Feb 2017

I did that in the short term. I wrapped the fitting thick with the tape but its not going to hold long. There is too much play.

srecho · 6 Feb 2017

Hi EFJ If your fittings are normal 1/8 BSP is it possible to change them to BSPT T for taper. Usually forks well no leaks

EFJ · 6 Feb 2017

My problem is I live in the middle of nowhere. Pta is about 400km from me.

srecho · 7 Feb 2017

hi there is there a possibility to swap plastic fittings with s/steel

EFJ · 19 Feb 2017

Just a question. I am not sure if it has been asked before. At the moment I use my waste water for my freshwater tank and my plants but a lot of water just ends up on the grass. Now this is where my question comes in, can I have my ro waste water feed back into my jojo drum so then it will be re-filtered again, so less waste water and the water gets recycled?

RayZor007 · 20 Feb 2017

EFJ said:
This my new RO unit. Just want to make sure is the top connector the discarded water and the bottom connector the ro water. Dont seem to be getting water at the bottom on but only from the top one.

Good Morning EFJ,
Tnx for the post, I have the exact same RO unit and it seems I have been using the wrong water in my tank as I thought the top connection with the flow restriction was the RO water. There was no instructions in the box and the internet was not much help. I will now swop the pipes and use the water from the bottom connection in my tank instead.

EFJ · 20 Feb 2017

RayZor007 said:
Good Morning EFJ,
Tnx for the post, I have the exact same RO unit and it seems I have been using the wrong water in my tank as I thought the top connection with the flow restriction was the RO water. There was no instructions in the box and the internet was not much help. I will now swop the pipes and use the water from the bottom connection in my tank instead.

Glad this post helped. Just check your 2 main fittings at the bottom cartridges as mine just popped off. Had to wind it up thick with thread seal tape.