[david68]

My ro unit as producing water at 75% slower than it use to.
I have had it for about a year.
Would this indicate that the three filters need changing and also the membrane?

Thanks in advance

Dave

[david68]

Can anybiody advise???

Dave 

[[GQC] Tim]

I really really hope you've changed your pre filters since you had it. Because if you haven't yes, that's most likely the cause. I kind of hope that it didn't do the membrane in as well.

[david68]

What is the life time to change the filters??

Dave

[windowwashers]

What is the life time to change the filters??

Dave

not changing prefilters serious affects the membrane and output, change them and hope you have not done the membrane in aswell, I change mine every month because perfilters are cheap and membranes are not. I know some that dont change very often I prefer to be on the safe side and also have 000

[mark dew]

What is the life time to change the filters??

Dave

dunno what it is but the tds will start rising after RO (before DI) when they are shot.
Membranes are £27 each at gardiners so even if they are shot it's not the end of the world.

[mark dew]

What is the life time to change the filters??

Dave

according to RO-MAN 6 months.
http://www.ro-man.com/faq-pro/index.php?action=article&cat_id=002&id=19

[jewelcleaning]

What is the life time to change the filters??

Dave

dunno what it is but the tds will start rising after RO (before DI) when they are shot.
Membranes are £27 each at gardiners so even if they are shot it's not the end of the world.

Surely not that price for a 40/40 membrane?

I have'nt got any pre filters going into my RO, just a water softner resin, will that do the same job, or should i invest in some 10" filters and housings quickly?

What filters are the best to go for?  Sediment and Carbon? Or what?

[mark dew]

What is the life time to change the filters??

Dave

dunno what it is but the tds will start rising after RO (before DI) when they are shot.
Membranes are £27 each at gardiners so even if they are shot it's not the end of the world.

Surely not that price for a 40/40 membrane?

I have'nt got any pre filters going into my RO, just a water softner resin, will that do the same job, or should i invest in some 10" filters and housings quickly?

What filters are the best to go for? Sediment and Carbon? Or what?

i thought he had a 300 gpd RO. 4040 will be more.
I dunno the answer to your question. I have a static RO-MAN in the shed and have no experience or knowledge of ionics systems. Apart from the price. 

[[GQC] Tim]

What is the life time to change the filters??

Dave

according to RO-MAN 6 months.
http://www.ro-man.com/faq-pro/index.php?action=article&cat_id=002&id=19

6 months if you live in a soft water area, anywhere else I would never use pre filters for 6 months. Phew.

[AJ]

Change you pre filters according to the amount of water that passes through them. Not all pre filters are the same, when you buy them explain the system you are running, your tap water tds and the amount of water you use and the supplier should reccommend the correct filters and tell you the amount of litres they can filter before they're spent. RO man can anyway.
The carbon filter is so important to keep fresh as this is the one that takes the chlorine out of the water.  RO membranes have zero tolerance to chlorine and it can ruin them very quickly.

All information given has been acquired from bitter experience!

[dd]

As already said, important to have carbon filter and change it regularly. Don't know about sediment filter, I don't have one and don't notice any sediment in our tap water. Are they necessary?

[[GQC] Tim]

Change you pre filters according to the amount of water that passes through them. Not all pre filters are the same, when you buy them explain the system you are running, your tap water tds and the amount of water you use and the supplier should reccommend the correct filters and tell you the amount of litres they can filter before they're spent. RO man can anyway.
The carbon filter is so important to keep fresh as this is the one that takes the chlorine out of the water.  RO membranes have zero tolerance to chlorine and it can ruin them very quickly.

All information given has been acquired from bitter experience!

Well, recommended filter life is 3000 Gallon for a 10" filter, so that would mean that some of us will have to change them every 2 weeks. I still find it a bit ridiculous there isn't a set guideline for these, I think your best off getting two pressure gauges, and keeping an eye on them.

Gaps water also do filter housings with a special 3 coloured gauge, change the filters when they are in the red. That might prove useful.

[windowwashers]

As already said, important to have carbon filter and change it regularly. Don't know about sediment filter, I don't have one and don't notice any sediment in our tap water. Are they necessary?

I dont see any carbon in my water but I still have the filter there to remove it.
you will be shocked if or when you get a sediment filter just how much crud you have been letting go through just because you cannot see it does not mean it is not there 

[[GQC] Tim]

As already said, important to have carbon filter and change it regularly. Don't know about sediment filter, I don't have one and don't notice any sediment in our tap water. Are they necessary?

I dont see any carbon in my water but I still have the filter there to remove it.
you will be shocked if or when you get a sediment filter just how much crud you have been letting go through just because you cannot see it does not mean it is not there 

Imagine what you drink, I think heavy metals from the pipes etc cause a lot of cancer problems in this country. That's why I have a filter under the sink. They are all old pipes, and cancer rate is one of the highest iirc.

[AJ]

Chlora Plus carbon filters can produce 90,000L of pure at 4-1. About £50 for this and the sediment filter that goes with it from RO Man