Oxalic acid

[Vanterrier]

It may be that the battery clamps on the booster pack are not "live" when not connected to a battery (load), so your vaporiser is not receiving a current. Try connecting a multimeter to the booster pack clamps to confirm they are live.
K

 

[The New beekeeper]

are you sure that the vaporiser itself isn't goosed? just connect it up to your car's battery for a few seconds just to see whether it starts to heat up

The vaporiser is ok, today i took a car battery and it worked. No problem vaporising all the six hives

 

[pargyle]

The vaporiser is ok, today i took a car battery and it worked. No problem vaporising all the six hives

The jump starter will have reverse polarity protection - are you sure you had the wires the right way round ? (Sorry think about the most obvious first !) Secondly, some of these chargers detect a dead short ... the OA wand is effectively a dead short - the type you have heats the pan by passing the current through the aluminium pan. Lastly, you are looking at an instant draw on the charger of 150 watts at 12 Volts ... the charger might be trying to reduce the initial start up current - normally a jump start will be on a battery that still has some life in it .. I doubt that the charger would work to start a car if you just left the battery out and connected the jump leads to the car battery connectors. There's some clever eletcrickery inside these charges to stop you destroying them !

 

[Rory Fields]

I've bought my OA from APC but they seem to source it from constructionchemicalslimited, and when I've gone with their website, they seem to sell it cheaper, plus free carriage on orders over £60, so I just bought myself 25kg of OA - should last me while!

 

[rossbyjove]

Just had a reply from'Construction Chemicals'.
They sell to individuals.
Don't need a license or business.

 

[BeeKeyPlayer]

There's no mention of anything like 99.5%. I don't know if that matters. It obviously doesn't for wood cleaning which is what they sell it for.

HD Chemicals do add 99.5% to the product description and sell to the public, probably for cleaning. They may not have received the Home Office warning that came to beekeeping retailers.

 

[Hedgerow Honey]

There's no mention of anything like 99.5%. I don't know if that matters. It obviously doesn't for wood cleaning which is what they sell it for.

HD Chemicals do add 99.5% to the product description and sell to the public, probably for cleaning. They may not have received the Home Office warning that came to beekeeping retailers.
[/QUOT

A lot of companies supply Oxalic Dihydrate, but I can only find one that supplies crystals, what's the difference?.
We still have quite a few packets of crystals purchased from a supplier a few years ago that are crystals branded Enolapi.

 

[Sutty]

I've bought my OA from APC but they seem to source it from constructionchemicalslimited, and when I've gone with their website, they seem to sell it cheaper, plus free carriage on orders over £60, so I just bought myself 25kg of OA - should last me while!

A while!!

Say 100 hives
Generous 3g per hive
Generous 5 vapes per year

100x3gx5=1500g

25÷1,5=16.66

So enough for 16 years of bee farming!
Assuming it's stable & doesn't degrade (I think it is).
Obviously if you only have 10 hives then enough for over 160 years!

 

[Vanterrier]

I thought I was ok with the 100grm I bought from Thornes last year...
Mind you I have tried it a couple of times now and cannot see much improvement to the wood? Perhaps I should move the bees out first to let it work as intended?
K

 

[BeeKeyPlayer]

Enolapi is not a word that means anything to me I'm afraid.
The oxalic acid that we use is dihydrate.

Edit: the above in reply to @Hedgerow Honey

 

[Erichalfbee]

Enolapi is not a word that means anything to me I'm afraid.

Dont they make Candipolline? Italian.