Yes, I have seen that one but £15.00 might not be cost effective for fishery owners who have to provide multiple tanks, plus there is all the hassle of servicing them every week. They might just as well do as Les Kaolins do right now i.e. supply the gear and prohibit anglers from using their own stuff.
Virkol is produced by Dupont and it contains their Oxone + other chemicals. I use Dupont Oxone + Sodium Bromine to shock (sanitize) swimming pools and it does not even cost £15 for 50,000 litres.
One problem could be that the water has to be correctly balanced but that is simple enough and all pool owners have to deal with it.
Another is that they may not be able to chuck it on the grass after use.
Then the concentration has to be correct.
What I do know is that this sanitizer kills, ALL bacteria, viruses, fungi and algae in seconds but, within 30 minutes, the water is safe for people to swim.
Possible problems could be -
a) They may need two tanks. The first with a detergent to remove the dirt because otherwise a lot of the sanitizing power would be lost.
b) It might not penetrate porous surfaces such as landing-net fabric.
Lets see what Dupont say, they put me on the right track before.
Hi Mike , from what i can see the stuff is around £10 /kg lets say a 100l tank @ 2% solution = 2kg of it so around £20 below is where i got my info from .
The problems i can see with dip tanks are will everyone use them and does the chemical affect the fish if the nets are not rinsed properly ,
Supply nets and slings and matts , that has to be the way to go .
It is sold as tablets or powder which dissolve readily in water. It is intended to be mixed with water to form a 1% to 3% solution (by weight, i.e. 10g to 30g per litre). The pink colour is useful in that it helps gauge the concentration when preparing the Virkon, and importantly, as the Virkon ages it discolours, making it obvious when it needs to be replaced. The solution is generally stable for five to seven days.