Guide To Installing An R/o Unit
br Scoob

due to a minor disagreement with my lfs i decided to finally pull my finger out and get an R/O unit. got no excuses anymore now we've moved, just bone idle. saves me having to visit him every week with drums under me arms. :lol:

late monday evening i was at work and decided to skyve off for 5 minutes (in case the boss reads) on the net and went to www.ro-man.com to finally buy my unit. plumped for the 6 stage 100 gallon per day unit with inline tds meter and pressure guage. at the minute its reduced to 145, a bargain if ever there was one. being impatient i paid an extra 20 for the next day delivery jobby as i could guarantee that donna would be in wednesday to accept parcels, her day off. wednesday it turns up as yopu are about to see.

this is for those who have not yet bought an R/O unit but are wondering what its all about.



package turns up looking a little something like this, thank god somebody was in, it's huge, least bigger than i expected.


once opened, this is what i found. if you are as much of a diy numpty as i am, this looks pretty daunting.


first thing in the destructions it says to do is read thouroughly and absorb and understand. i read em, i got absorbed, i didn't understand. next thing it says is to find the location its going to go in. can't be near hot pipes etc etc has to be somewhere safe and near the mains pipe. best place imo is under the kitchen sink. so first to find the location, i honestly believe this is the first time i have ever opened this cupboard


3 fag breaks later, 1 bottle of coke and back to back stone roses on vh1 and i've cleared it out ('cleared it out' = moved it onto the floor) for no apparent reason i found 3 rolls of bin liners


then i stuck the R/O unit in to get an idea of placement. originally i wanted to stick it on the left, ofcourse that was before i saw the labyrinth of washing machine pipes already there. just as well my second choice was the right hand side eh?


so now we've found a space, we have to locate the plumbing. i can easily work out that the drain pipe is the big fat white one coming out of the bottom of the sink, but i'm a bit more dubious about the supply pipe. instructions tell me to turn on the hot tap and see which pipes get hot. the cold one is the one i want to make holes in and so i removed a strip of foam lagging just above the mains tap (half way up the copper pipe on the right behind unit) in the above picture.

next was to isolate the water via this tap and check its off by turning on the cold water tap on the sink. i did and it did. at this point i'm already well chuffed with myself. now on with the business.

first thing to do is fit the drainage 'collar' to the drain pipe. this comprises of an adjustable collar, not dissimilar to this one.


i undid the nuts off of the screws and wrapped it around the main waste pipe, positioning it so i can get the drill in there (see, thinking ahead) then replaced the bolts and did them back up again, locking the whole thing in position.


next job is to drill a hole, through that threaded inlet and through the waste pipe. this isn't too hard. the tricky bit is removing the plastic powder it innevitably leaves in there, only to discover after 10 minutes your fighting a losing battle as the bits of plastic filings you can see are actually bubbles from the washing up well they are the same colour


next is to pierce the mains with this scary looking contraption for the units inlet. please make an extra special note of the small plastic ring thing in the bottom left corner of my hand.


following the destructions shows you how to put this little dealy together until it looks like this.


once together you have to wrap it around the pipe, above the mains cock, and tighten the bottom bolt with a spanner to hold it firmly in place. once secure you place the end of the red hose into a container incase you pierce it and theres water in the line. when ready, nervously start piercing the pipe by screwing in the tap dealy on the side.


next you take the R/O unit and remove the end cap of the membrane cannister and slot in the membrane remembering to check the 'o' ring as you replace the cap. the unit is now ready to be installed. you take the length of green (waste) hose and attach it to the collar on the drain pipe. then take the red hose (mains) out of the container and push-fit it into the red inlet on the R/O unit then finally take the blue hose (good stuff) and push-fit it onto the blue outlet at the top of the R/O unit and place the other end of this back in your container. the system is now ready to be turned on and looks like this.


its now time to undo the brass tap on the mains and see if it all works with the water online. if you look at the first cannister on the unit you can see the water going in.


lots of weird noises start filling the cupboard and i would be lying if i said i felt totally comfortable at this point. must admit tho' i felt even better when i heard the sound of water p****** out of the back of it.


quickly turned off the mains and grabbed the trouble shooting pages of the manual. "if leaking check all push-fit connections are pushed in properly". ahhhh there it is, me green one isn't in properly, quick squeeze and all is well again to start filling.

this time there are no hitches and it goes swimmingly. destructions say to flush the first load of water for 2-3 minutes using the blue switch, which i duly do before starting to fill my container. at this point i notice my pressure guage is reading nil. manual says if its reading less than 40psi it wont really work, yet instantly i start getting a trickle so i carry one.

after a gallon or so i quickly go back to check up on it and notice that my tds meter shows that my mains tap water is at 330 ppm tds and that my 'good stuff' filtered water is at 0ppm. well chuffed with this and in a couple of hours my 5 gallon drum is filled. you can just make out the tds meter here, tho in real life its got a lovely blue backlight.


so that ladies and gentlemen is how you install an R/O unit from start to finish. thankyou for reading this far and thank you to R/O MAN for an exemplary product, no longer shall i sit in traffic knowing that the loud bang in the boot means that my drum has fallen over and is rusting my golf clubs :thumbsup:

oh and before i forget, remember i asked you to remember the small plastic ring............ well there's always one isn't there