[Ian101]

Got one of these http://www.machinemart.co.uk/shop/product/details/cbm250ss-1in-stainless-steel-booster-pum

and also got some of these connectors in photo.

Problem is the fittings are 1 inch and tap and inlet to prefilter are not .... they're normal hosepipe size (half inch I think) ... I know I need some type of a reducer but can anyone point me in the right direction and the name of what I need.

Once its connected will be great as its 5.5 bar / 77psi

[mikecam]

As far as i'm aware where possible you should maintain the 1 inch hose intake and output as far as its possible to do so.
 The output on the top of the pump should be an angled (90degree) fitment and not the straight ones you have there. On my output i used reinforced 1 inch hose, and i fitted some part of a washing machine drainage package, which fitted in the hose and i could tighten and i could screw a hozelock connector on. Trial and error from walking round B&Q plumbing dept with a hozelock in my hand !!!

[Ian101]

In the end took pump with me to 2 plumbers merchants and showed them what I wanted to do.

Photos of the fittings I used and finally installed with no problems.

Great to have a supply of pure again 

[Gav Camm lammy 283]

you could have helped
yr self m8 iv always got pure
well nearly always 

[Clive McDonald]

That looks great. Well done.

[bobplum]

can i order 400 lts for my new tank(getting from gav)
oh and yes ive got all them plumbing fittings in my garage
bob

[Gav Camm lammy 283]

tidy bob clean him out

[Ian101]

arghhhh !!!! just checked tds been filling ibc at a tds of 15  : : :

but then again I should have flushed the 4040 and changed resin but so excited at finally getting connected I sort of skipped that ..... 400 litrs of 15tds waiting for you Bob 

[Gav Camm lammy 283]

 

[elite mike]

that pressure looks very high on the gauge ian

perhaps you can turn it down a bit,and bring tds down that way

looks a great pump btw

[Ian101]

that pressure looks very high on the gauge ian

perhaps you can turn it down a bit,and bring tds down that way

looks a great pump btw

no ..... pressure not adjustable it operates from 3.5 bar to 5.2 bar and works automatically

I thought higher the pressure the better for the 4040 ??

so can u lower tds by having a lower pressure ??

pump nice bit of kit got it from machine mart (christmas present from the missus) but dont expect any vast knowledge from M.M when it comes to fittings / connectors.

[dave0123]

If you lower your waste water outlet that will bring down the pressure i have the same sort of pump but without the tank thingy i run mine at around 65psi we have really bad pressure here thou.

[mikecam]

that pressure looks very high on the gauge ian

perhaps you can turn it down a bit,and bring tds down that way

looks a great pump btw

no ..... pressure not adjustable it operates from 3.5 bar to 5.2 bar and works automatically

I thought higher the pressure the better for the 4040 ??

so can u lower tds by having a lower pressure ??

pump nice bit of kit got it from machine mart (christmas present from the missus) but dont expect any vast knowledge from M.M when it comes to fittings / connectors.

Get that idea right out your head. You canot lower TDS by lowering PSI.

[elite mike]

that pressure looks very high on the gauge ian

perhaps you can turn it down a bit,and bring tds down that way

looks a great pump btw

no ..... pressure not adjustable it operates from 3.5 bar to 5.2 bar and works automatically

I thought higher the pressure the better for the 4040 ??

so can u lower tds by having a lower pressure ??

pump nice bit of kit got it from machine mart (christmas present from the missus) but dont expect any vast knowledge from M.M when it comes to fittings / connectors.

Get that idea right out your head. You canot lower TDS by lowering PSI.

can you tell us why mike

[mikecam]

that pressure looks very high on the gauge ian

perhaps you can turn it down a bit,and bring tds down that way

looks a great pump btw

no ..... pressure not adjustable it operates from 3.5 bar to 5.2 bar and works automatically

I thought higher the pressure the better for the 4040 ??

so can u lower tds by having a lower pressure ??

pump nice bit of kit got it from machine mart (christmas present from the missus) but dont expect any vast knowledge from M.M when it comes to fittings / connectors.

Get that idea right out your head. You canot lower TDS by lowering PSI.

can you tell us why mike

yeah dead easy. RO needs high pressure to function and perform at its best. Lets take a look specifically at Ian RO, which you think is  'a little to high pressure'.............
 his pump operates at a max of 5.2 bar, thats just over 75PSI. 70 psi is the minimum that his membrane is designed to operate at, its good for 100PSI plus. So if he's pumping the max for his pump and its the miimum for his membrane, he's already operating at his capabilities. Why would he operate at less than the manufacturers minimum recomendations and hope to improve performance?
 My own booster pump that shoved 80 PSI through my membrane and gave me a TDS of 4ppm has just burst with the recent frosts/ice. I'm now unpumped at roughly 40 PSI, producing 10 ppm. Can you see the correlation between high pressure and the membranes efficiency?
 My anecdotal evidence, manufacturers recommendations.........that should be enough?

[elite mike]

cheers mike

i was not having a go

but i thought the optimal psi for ro is 55psi, if you look at his picture it looks as if its well over 100

which on mine has blown the  seals on the ro,

just a bit of observation ,

and i thought if you turn the pressure down a bit will result in a lower tds

regards mike

[mikecam]

cheers mike

i was not having a go

but i thought the optimal psi for ro is 55psi, if you look at his picture it looks as if its well over 100

which on mine has blown the  seals on the ro,

just a bit of observation ,

and i thought if you turn the pressure down a bit will result in a lower tds

regards mike

yeah to be fair it doesn't show his RO in the pic, i just happen to know its a 4040. What sort of RO did you blow the seals on Mike? Definateley higher pressure = lower TDS though. Some smaller RO's like Merlins or them 300GPD do have maximum limits but i'm sure they're good for 90 PSI and need at least 60PSI to function correctly.
 Its a bug bear of mine that HF5's are described as low pressure membranes. Their idea of 'low pressure' is 70-80 PSI !!

[elite mike]

thanks mike

i have a ro man 200 gdp  ,and if i put it through the mains water ,which is well over 100 psi

it will blow the seals 

thanks for the info , i stand corrected 

[Ste M]

usually lower pressure through DI only results in longer life of the resin, as mike says though higher pressure is best for RO's

[dave0123]

Yes but as june at gaps told me

pressure is not allways best if.. you have low water flow from your taps and very low psi because it just starves the membrane resulting in a higher TDS.

Plus as he said he is only getting a psi of 15 after its filters with the booster pump thats quite high? so maybe there is not enough waste water coming out? so backing the pressure off a bit will make more waste might bring the TDS down a bit (ofcourse this depends if he has initally teaked the system and we dont know if thats the lowest he can get it)