SoapySmith

It is interesting you say one of the reasons you don't like it is the colour. Blue goes directly into the cassette or holding tank, so you only actually see it when you are putting it into the tank, during operation of the toilet you don't see it at all. Producers have tried using alternative colours, but these have not generally been accepted by buyers, who, with very few exceptions such as yourself, demand the colour be blue. Traitionally it was/has always been blue and as we all know people don't like change. In fact the colour has no effect at all on the performance of the product, it is mearly a dye, which as anyone who has spilt any on a carpet will know is very difficult to remove. The other reason for blue and pink is so they are not mixed up in use. Re the smell. Again this is an artificial additive. Many have a sickly "bubble gum" smell, but some do maintain a nice fresh citrus note which is useful for covering more natural toilet odour. Frankly, as it works for you, you have the best option, colourless and odourless, which cuts down on the artificial additives.

brewer's yeast will work in the same way a septic tank works. It will break down the waste. However: - it will not cover the smell - it will take a while to start working, so is only suitable for a holding tank and not for a cassette which you will need to empty before it starts to work - it can be killed very easily by trace elements from any "blue" product I think the quick answer is yes it will work and yes it is green, but frankly in a confined environment such as a boat or caravan or motorhome it is not really effective enough and you will most likely have to put up with a certain level of smell.

See if you have a local MANBAT outlet close to you (google them). They specialise in battery's and chargers for everything from small vehicles to large commercial vehicles plus marine. They will be able to give you good advice plus good direct prices and a choice.

To all above commenting on my reply to this post. Comments noted. Very sorry if I have inadvertantly broken the rules and offended anyone. I want to join in topics which I know something about if I believe I can make a useful contribution. In future I will keep my comments to generalities and will only talk about specific products if specifically asked about these by another member. Toilet Blue was developed to kill the bacteria in toilet waste and to break down solids in holding tanks, both larger holding tanks and the cassettes in Porta Potti's. The original agent used was formaldehyde, a seriously nasty product which does the job very effectivly, but if it gets into the water system or the environement in general it does a lot of damage. This product has been band in the UK, but surprisingly still appears now and again. New base products are now used, which while better than the original, still have to be strong to do their job. "Green" alternatives have been developed, however, as stated above by other members, take much longer to start working so are not really suitable for cassettes which are emptied on a regular basis, and which can be nutralised by any trace eliments left by previously used "blue" products. To use a green product, you must first clean out the tanks and the whole waste water system, with a cleaner you know will remove all trace elements of any previously used "blue" product. This is not easy, but in the long run is better for all of us. Pink flush was developed for use in the Top (flush) Tank to keep the top tank and flushing system clean and free from algae. Good Pink fluid also contains a lubricating agent to stop the rubber seals from drying out/degenerating and leaking. If you just use tap water alone in the Top Tank, eventually you will see "black bits" appearing when you flush, this is algae breaking free and flushing out. This algae will also start to smell. Leaks may also follow. I know it is still popular to use bleach in toilets, but adding more bleach to the water system, to the environment in general, is this really a good idea for the future ? NB Alnwick. Your personal message has been noted. I have tried to respond directly to you but the system won't allow me to message you.

BLIMEY, I thought I had signed up to CANALWORLD Discussion Forum but find myself in the middle of a political forum. Frankly I gave up on politics long ago when I realised that ALL politicians, without exception, don't give a stuff for any of us ordinary folk and are only in it for one reason, to line their own pockets. Back to topic. The price of "scrap metal" has gone through the roof over the last couple of years, especially brass, tin and lead, so easy to take items are targeted. Nantwich was mentioned above. I live not far from the marina and know very well that the town centre is totally covered by CCTV but the outskirts of town, including the marina, are not. I know this and so do the local criminals. What can be easier than a quite walk down the tow path "lifting" anything brass from a line of moored boats. This situation must be mirrored around the country. At least the police here have noted this and are making an effort to warn boat owners. I think the initial comment to take extra care is worth noting regardless of who you blame for the situation Maggie, Tony, Gordon or the new Chuckle Brothers

It is advisable to use a good quality “blue” toilet fluid, such as Fenwick’s Blue Jon, for the bottom tank to break down the solids and mask the bad odour with a nice citrus smell. In addition you should always use a good quality “pink”, such as Fenwick’s Lily the Pink, for the top flush tank. Lily also contains slip agent to stop the build-up of “black bits” (algae), plus a lubricant to keep the toilet seals in best condition, without which they may very well dry out and leak. The web site www.toiletblue.co.uk explains this all very well.

Lock Keepers Secret, Classic Narrowboat Cleaner produced by Fenwick's. Non-toxic, non-caustic, non-abrasive very eco friendly.