For long
term emergency water filtration, I found the Tulip water filter to be one of the best
designs. I have not used it yet (in mine normal life I'm mobile and just carry water or have a pump filter). But looking at the design, I really like it how it's thought out. I have had a lot of water filters and with experience from those.
The Tulip water filter is a gravity powered, silver impregnated ceramic filter with a carbon core. In English a water filter capable or filtering bacteria and absorb chemicals. The silver impregnation prevents bacteria from growing inside.
The Tulip water filter is a gravity powered, silver impregnated ceramic filter with a carbon core. In English a water filter capable or filtering bacteria and absorb chemicals. The silver impregnation prevents bacteria from growing inside.
The Tulip
water filter is made for poor countries where clean drinking water is not
always available. One of their ways to fund this is to sell the same filter to
the general public. When you buy one, they will donate one. They don’t cost much
either for a normal consumer; just €32,25 each and the price drops when you buy
multiple ones. However I’m not sure if the post it internationally.
I have been
using all kinds of water filters for a long time. For emergency situation when
you are not on the move, a gravity filter is ideal. You do not want to spend to
much time and energy during an emergency situation.
The Tulip
is a siphon style gravity filter. Which means you can put it in to any water container
large enough to fit the filter in and use it without modification. This means
you do not need a dedicated water containers for the dirty water side of the
filter. On water filters like the Royal Berkeley you can’t really use the water
container for anything else (they are however great if space and weight are not
an issue). You want to keep the clean side clean and the dirty side has the
filter mounted on it. On a siphon type, the filters are dropped in allowing you
to use the container for other uses (laundry, washing up, etc.). Unlike other
siphon style filters, like the Katadyn Siphon, the Tulip has a build in balloon
type pump to start the siphon action. This is great, since you are not adding
bacteria from your mouth to the hose (from sucking on the hose). There is a red
piece of plastic which help to position the filter and keeps water from
dripping the wrong way.
If you want
to mount these filters in a dedicated system like in a Royal Berkeley, you can.
The end is equipped with a thread and a plastic wing nut. Just add an o-ring
and you can mounted it inside a bucket.
This
ceramic filter has great features to protect the filter. This is the only
gravity filter I know with a plastic case protecting the ceramic. A very simple
solution which nobody else seems to be using.
To prevent
the filter from getting dirty the filter has two ways to pre-filter the water. They
put the scrubbing pad of the filter inside the plastic tube, covering the
waterhole at the bottom. This means the scrubbing pad is used as a pre-filter.
Also the ceramic is protected by a cloth ‘Sock’, which can be removed and
rinsed or washed separately. The effectiveness of the sock really depends on
the water quality.
If the filter
get clogged, you can clean it. The siphon pump can be used to back flush the
filter, by closing the valve and squeeze the balloon pump. If that is not
effective anymore, you can clean the ceramic. Mine experience is that you do not
need the scrubbing pad right away. You can rinse ceramic filter and wipe it with
a cloth first. If that doesn't work anymore, use the scrubbing pad to clean it.
When you use the scrubbing pad, you are actually removing some of the ceramic.
A gauge mounted on the top allows you to check if the ceramic is still thick
enough. If the filter is to thin, it’s time for a new one.
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