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Writer's pictureTynan

How to Filter Water on the Dock or Hardstand

Updated: May 27

When our catamaran is at anchor, our drinking water system is replenished by a reverse osmosis water maker that produces clean, potable water on demand. When we're at a dock or on the hardstand, it's a different story.


In marina's and shipyards yacht water tanks are usually refilled using mains water. The problem is the mains water can be filled with contaminants from the pipelines that can collect in your fresh water tank. It decreased your water quality and means that sediment can build up on the bottom of the tank, which you then need to clean out.


To solve the problem this is the simple and reusable water filter I made to run inline with our hose, in order to improve the quality of the drinking water going into our tanks.



Yacht water filter marina hardstand


Marina and shipyard water filter components


The water filter system is made of a few key components. I purchased ours from a local store, but equivalent parts are also available online from places like Amazon.



Putting the filter together


The thread to hose adaptors are screwed to the input and output of the filter housing, then the male hose connectors are screwed into the adaptor. At that point you just need to put the filter in and run the hoses.


When putting everything together I used food grade silicone grease to lubricate the seals and PTFE tape for the threads to ensure a water tight seal.


Yacht water filter marina hardstand

As you can see ours is screwed to a post but that's not necessary, it just made sense for us to do given we were hauled out for a long term stay.


Benefits of using a filter


These are some of the benefits to making a filter like this for when you have to fill your tanks from mains water.


  • Filters drinking water to improve the quality

  • Can use generic replacement filters rather than needing specialty replacement parts

  • Cuts down on sediment and contaminants that can build up and need to be cleaned from the water tanks

  • Easy to store and re-use as you sail around between marina's, shipyards and anchorages.


 

Some of the links are Amazon affiliate links. This means that, at zero cost to you, if you use the link to make your purchase we make a commission. It's just a simple and free way you can support the channel.

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1 Comment


margo zalizo
margo zalizo
4 days ago

Ensuring clean water on a dock or hardstand is crucial, especially when contaminants from mains water can accumulate in your tank. Setting up a simple filtration system, as described, is a great solution. To maintain peak performance and avoid sediment buildup, timely replacement of filter cartridges is essential. Explore https://filterway.com/replacement-filter-cartridges/gac-filters/  granular activated carbon cartridges for water filters for versatile and high-quality options. With a range of cartridges that suit various filtration systems, you can efficiently improve water quality, remove sediment, and enhance the lifespan of your water tank. Whether you're on a yacht or managing water tanks at home, reliable replacements ensure consistent access to clean and safe drinking water. Make every refill worry-free with Filterway's trusted products!

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