Filter tower upgrade mch6

[wandcf]

Hi,
I'm changing the filter tower on my MCH6 to something a little larger (probably a Maxifilter) and was wondering what are peoples thoughts on what I could or should do with the older tower - the options are:

1. remove it entirely

2. convert it to become a secondary condensate trap. Would it remove additional vapour and oil before it hits the filter?

3. keep using it as a filter in place before the new main filter. Given the new filter is reasonably big for this compressor, I'm not sure there is much benefit to doing this.

There's nothing wrong with the old tower and gas plenty of life in it.
Thanks for any advice or suggestions.

 

[Wallowa]

Not certain what you are trying to achieve, but more filtration is a good thing....I just bought this to compliment my MCH-6 Icon....for use if I need to pump during heavy air pollution periods.... like forest fire smoke which is becoming an every year thing here in PNW...

Personal Scuba Filter · INT/Yoke (Discontinued)

Do you worry about air fill quality when diving? The Personal Scuba Filter mounts easily between INT/Yoke tanks and the compressed air source. Produces Grade E breathing air by removing moisture, hydrocarbons, oil, taste/odor, and converts CO to less dangerous CO2. This item has been...

nuvair.com

Several version available...I needed yoke.

 

[rjack321]

Leave it on there. Swap out the tiny filter at its normal rotation schedule (probably in the 8-10 hour range in Aus) and use the secondary filter to have confidence that as you reach the end of life in the primary filter you aren't pumping wet oily nasties.

 

[wandcf]

Thanks for your replies.
The reason for thinking of adding an additional condensate, was to try and catch any excess water and oil that the first condenasate tower didn't get -therefore (hopefully) extending the filter life a little.
Perhaps doing that with just keeping the original filter in there is a better option.

 

[iain/hsm]

The big overwhelming first question before going any further on the Coltri MCH-6 you need to be aware of and inform.

1. Is your compressor running with a petrol /gas engine or
2. An electric motor

The third question and subsequent answers some on here will probably not like so I will leave them.

But the type of prime mover on your compressor is critical in order to take the relevant course of direction.

 

[rjack321]

Thanks for your replies.
The reason for thinking of adding an additional condensate, was to try and catch any excess water and oil that the first condenasate tower didn't get -therefore (hopefully) extending the filter life a little.
Perhaps doing that with just keeping the original filter in there is a better option.

The big problem with that tiny on compressor filter is that it produces marginally breathable air when brand new. And that gas goes from meeting standards to soaking wet in less than a tankful. Basically there is no margin for error with it. Get a repackable canister (or make one) and run just 13x in it as a prefilter with a ~10hr life. A normal triplex filter is ok too just more expensive for little added value. A humidity sensing disk between the compressor filter and your new bigger main filter will tell you when to change it without risking your health or wet tanks.

 

[wandcf]

Thanks again for your replies. At the moment the compressor is petrol driven, but I do plan on changing it over to electric in the near(ish) future. The delay on this is because I need to research and understand any issues with using a motor that runs at 2800 RPM (I can't find a 3000+ RPM motor in Aust) and then using a pulley similar size to that on the compressor.

Thanks for the advice on the humidity disk, I'll look into that also.
I'm using a PMV on the setup to extend the filter life. I know I'm kind of polishing a turd with this compressor, but until I find a sugar mummy to shower me with dive gear and accessories, then this will have to do.

 

[grantmac]

Run it as a replaceable with 13x as mentioned. Expect to change it often and treat it as insurance for the bigger filter.

 

[rjack321]

You can just change the pulley size to get the 2800 RPM motor to turn the pump at the right rate.

 

[happy-diver]

PMV

Learn what this actually does not what you think it does