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GS3-MP tank versus mains pre-infusion

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I have a rather specialist question and wondered if people could offer some advice. I’m trying to improve the situation with my water and/or pre-infusion. I have a GS3-MP. It is currently on mains water pressure with a Frankie filter. I use the GS3 inbuilt pre-infusion. The franke filter does not remove scale and obviously it is just filtered tap water.

 

I have been considering fitting a mains water pressure reducer so that I could get softer pre-infusion. I could then fit a BWT filter to improve the water quality and remove scale.

 

The other option is to revert to the GS3 tank. I could then use the water I liked but I would be reverting to the GS3 tank pre-infusion. This is not meant to be as good as when plumbed in but I wondered whether it might actually offer a soft ramp up and be adequate/better?

 

Any thoughts on the relative merits of the two options gratefully accepted

Thanks


GS3 and Versalab M3; Vario Home, Aeropress and Kalita Wave

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Thinking out loud, but is line in pressure on a pumped machine not different to the same on a lever? Meaning water is forced into the group at whatever pressure you set it to before the spring takes over, compared to the type of preinfusion that occurs on a line fed pumped machine ie the bar pressure is wetting the puck but it is not really pre-infusion in the truest sense.....or have I got it wrong


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Thinking out loud, but is line in pressure on a pumped machine not different to the same on a lever? Meaning water is forced into the group at whatever pressure you set it to before the spring takes over, compared to the type of preinfusion that occurs on a line fed pumped machine ie the bar pressure is wetting the puck but it is not really pre-infusion in the truest sense.....or have I got it wrong

 

I think you are right Dfk the pre-infusion on the GS3 is not true pre-infusion. It is just open line pressure before the pump kicks in. The mains pressure if probably too great for this to be nice and soft hence I was thinking about the pressure reducer.


GS3 and Versalab M3; Vario Home, Aeropress and Kalita Wave

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It maybe just using the tank would offer something to wet the puck but could then use nice water for more delicious espresso...


GS3 and Versalab M3; Vario Home, Aeropress and Kalita Wave

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[quote name='Nod']It maybe just using the tank would offer something to wet the puck but could then use nice water for more delicious espresso...[/QUOTE] I cannot remember from the days I had one but is there not a setting of some sort to adjust or delay pump pressure kicking in at full strength? never had the MP but @coffeechap will know


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[quote name='dfk41']I cannot remember from the days I had one but is there not a setting of some sort to adjust or delay pump pressure kicking in at full strength? never had the MP but @coffeechap will know[/QUOTE] Not that I know of - I did investigate reducing pump pressure but dsc advises against this as it causes damage in the long term....


GS3 and Versalab M3; Vario Home, Aeropress and Kalita Wave

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I have a rather specialist question and wondered if people could offer some advice. I’m trying to improve the situation with my water and/or pre-infusion. I have a GS3-MP. It is currently on mains water pressure with a Frankie filter. I use the GS3 inbuilt pre-infusion. The franke filter does not remove scale and obviously it is just filtered tap water.

 

I have been considering fitting a mains water pressure reducer so that I could get softer pre-infusion. I could then fit a BWT filter to improve the water quality and remove scale.

 

The other option is to revert to the GS3 tank. I could then use the water I liked but I would be reverting to the GS3 tank pre-infusion. This is not meant to be as good as when plumbed in but I wondered whether it might actually offer a soft ramp up and be adequate/better?

 

Any thoughts on the relative merits of the two options gratefully accepted

Thanks

 

Do you have the "old" GS3 MP model without the "strada" modification?

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Yes - I have looked at the retro upgrade but it is going to be a lot of cash....


GS3 and Versalab M3; Vario Home, Aeropress and Kalita Wave

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Yes - I have looked at the retro upgrade but it is going to be a lot of cash....

 

 

you really want to be looking at a water hammer arrestors, one of those might be suitable. Pegler do a PEG62, you could call them and get some more detailed specifications such as chamber size, pressure required to move spring etc..You might find something off the shelf to do what you need.


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you really want to be looking at a water hammer arrestors, one of those might be suitable. Pegler do a PEG62, you could call them and get some more detailed specifications such as chamber size, pressure required to move spring etc..You might find something off the shelf to do what you need.

 

Thanks Dave - I will check it out... I am also going to trial the tank and see how the infusion looks/coffee tastes....


GS3 and Versalab M3; Vario Home, Aeropress and Kalita Wave

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Do you have the "old" GS3 MP model without the "strada" modification?

 

Even if I did the mod it would only solve the pre-infusion bit not the changing the quality of water bit...


GS3 and Versalab M3; Vario Home, Aeropress and Kalita Wave

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Strada modification will change a lot of preinfusion experience - and not only preinfusion and also all extract process (because you can play with pressure during the whole extract time).

Than, this modification will be good as a tank use or bwt- because pump star full pressure from very beginning - so no matter tank or bwt you will have pressure on your head all time.

Than this modification will save you once per year changing O ring wich can be pain in ass..

 

But its a lot of money - especially if you know that you will get “bad” merchandise - some parts (pipe etc) are with wrong curve and also some connectors are male and you need female... but you can find it online some review and suggestions how to manage this..

 

But my suggestion is to upgrade to this strada kit but for sure - go with Bwt or any other quality filter.. than you can say that you use all of your gs3..

cheers


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