Smelly water

[VicS]

[ QUOTE ]
do you think that the introduction of say 50 tonnes of superchlorinated water which will quickly dissipate, into a river is even measurable

[/ QUOTE ] Close to the discharge point it will be measurable initially but obviously not as it disperses into a large volume or as the chlorine reacts with organics etc in the water or even decomposes in sunlight. I don't know what modern instrumental methods might be used these days or what their sensitivities are but the hand held visual comparator and DPD tablets that I used (and is still used) has a sensitivity of about 0.2 ppm.

 

[VicS]

[ QUOTE ]
but what about using beer-line cleaner to clean the tank and pipes?

[/ QUOTE ] My reply to this seems to have vanished into the ether. Probably tagged onto a thread about solar panels or diesel engines!

I looked at this when it was mentioned a while back. Beerline cleaners are hypochlorite based, quite strongly alkaline and also contain other cleaning agents. IIRC they are available in largish quantities only so although suitable for cleaning but not dosing may not be so attractive unless you have access to small quantities.

Some are intended for use in cleaning equipment.

For periodic dosing of the water Milton remains my preferred option.

 

[EdWingfield]

Anyway Vic, I suppose the question that really matters is, does the dumping of super-chlorinated water into a river or marina have any effect on the aquatic environment?

Certainly it is common practice with the cleaning of ships water systems. It is done legally and I know of no ill effects. If there were, I imagine the Environment Agency would soon make requirements for neutralisation.

The small commercial craft, lifeboats and commercial yachts who have to carry out disinfection do just the same.

If the boat is in say a sensitive freshwater area, then it would be advisable to follow the same practice as that done by the local hire fleets. (mind you, there's no guarantee that hire fleets carry out water disinfection. I had a round Britain yacht fleet here. The water tasted foul. On sampling I found every nasty bug imaginable excepting cholera and typhoid! The water treatment was non existent, the whole fleet was required to undergo disinfection)

 

[temptress]

We had the same problem when we got Temptress. I used Milton.

What i did was:

1: Empty the tanks
2: Calculate the amount of milton I needed (then doubled it!)
3: Put the milton in the tanks
4: Fill up with fresh water and pull this through all the pipes
5: Leave overnight
6: Empty tanks again
7: Repeat 1 - 7 wiht reuces Milton
8: Fill up wiht fresh water and pump out
9: Fill uip and use -

We had a faint trace of Milton in the water for a few tank fulls then nothing. Now I use Milton on the tanks about every other year as a precaution.

Alternatively - you could fit a 'drinking water filter' between the tank and a tap and just forget about the tanks. remember to change the filter every season though!

 

[EdWingfield]

Alternatively - you could fit a 'drinking water filter' between the tank and a tap and just forget about the tanks. remember to change the filter every season though!

Q. Does your filter manufacturer claim to remove pathogenic bacteria?

 

[bedouin]

The aquasource filter we use does say so. We know it works well on the smell/taste but it is harder to tell whether it really is removing the bacteria as well /forums/images/graemlins/smile.gif

 

[EdWingfield]

Its impossible to know unless you send a sample off to the lab.

But you can't do better than exactly follow the manufaturer's instructions.

ps. There's plenty of ships that have filtration in their systems.