[xxmattyxx]

This is what I meant



that nozzle is about 3/4 in height, so you can see how fine the mesh is.

Matt

[jikwan]

no no the nozzle thing is way off

[xxmattyxx]

Dont forget my intention wasnt about trying to stop airlocks, it was about protecting my pump as theres no strainer, but that cheap 75p tea-strainer (remember?) was used instead of the nozzle mesh and seems to have ALSO helped regarding airlocks.

Matt

[Jon-scwindows]

You can get inline strainers that will fit straight inline with the 1/2'' hose between the pump and barrel from ebay or maybe ro man?, i have used this and brass connectors to stop this with no problems. Plastic are poo and just wont do, brass ones with a shutoff valve will do the trick or just a brass inline valve, use some jubilee clips, then turn the valve closed before changing barrels.

jon  igot a rough idea of your concept
hows the tyres and suspension?
i forgot to mention that with 30psi it works with a heavy payload
but when the car is light youll get a lot of wear on the centre of tyre
got to change the pressure

( Hey Jikwan - yeah the tires are ok, i havent tried it fully loaded with 250 litres yet, but the 250ltr flat tank is positioned over the back axle with pump/batt/ underfloor in the spare wheel compartment, spare wheel behind drivers seat.
I found that the way i drive the tires would wear allot on the outside at 26, on 30 they do feel quite firm, but il do what you said put them down again when empty. I just had to get some new front tires because they were dead and worn right through at the sides. are you sure 30 is not too much for the tires with all the weight? )
thanks

[L.J.Thorpe]

just sort of thinking but....my pond vac has a little flap thing over the inlet pipe.when pressure is on it opens motor stops it closes. it is simply a disc and oring setup back pressure from the water closes it when motor stops.principle would be very simple to apply to pipes on trollies.....but someone needs to make them :

[jikwan]

i might give the inline strainers a go

you think the tyres are worried about an extra 4psi?
i do believe the rule is  more the load higher the pressure
your car manual should say that
 where i position sometimes200lit is right in the middle of the car
back seats removed
then you have even distribution on all 4 suspension springs

your idea is put all the weight un the back springs
you must be crazy

why dont you type in new post="weres the best position for loaded 250lit tank?"
and ask why?
the heavyweights on this forum have experience can give you good advice

[jikwan]

lj
i do believe the flap thing would work
the dribble that comes out my hose is next to nothing pressure
but a real drag to get rid of airlock--imagine 8-9-10 times a day

problem is locating the flap valve

[L.J.Thorpe]

i know what you mean about that its something i have been thinking about for awhile changing barrels is a pain i have just changed my set up ((its diy and i dont know about freedom trolley) I HAD a female hoselock on pump out to dual male adaptor and female on hose reel but this always leaked : i now use GECA fittings hard to describe them but so far very good ,less prone to airlocks ,BRASS,washers are replaceable,dirt cheap ,DO NOT LEAK AT ALL . Some one told me they are usedon compressors but i dont know maybe google it as for flap valve.....gap in market there perhaps unless we just aint found em yet

[L.J.Thorpe]

I have just had a real moment of clarity on this dead simple and easy IF IT WORKS and i will try it out  tomorrow and report ;Dfingers crossed (I would go out and try now but missus and kids all in bed)dont want to say what in case i lay myself open to ridicule or in case someone else has done it already

[jikwan]

lj
i think i know what it is
some simple non return valve idea
the hoselock femail non return devices dont work so well in my experience

[Jon-scwindows]

((I will post some pictures when i have time jikwan about the tank))

Alternatively, which i thought would be quite allot easier, is buy a 25 litre tank from Ro man, mount it permanantly on your trolley, and then you wont have to change barrels or consider airlock problems.

These tanks are 25litres, strong and more upright than sideways so suited to a trolley. With a big lid on the top so you can easily pour the barrel straight in, or even better if you have a van mount, fill up straight from your van tank in seconds. You can choose an outlet at the bottom, so then the pump is gravity fed directly without any problems. They are durable and strong, and when you tilt your trolley you wont have any leaks or splashes out of the lid.

Im not sure if they will fit a freedom trolley though?
http://www.ro-man.com/shop/product_info.php/cPath/54_67/products_id/324

[jikwan]

john
im making calculations bout your big lid idea   never thought about that

why dont you make a new subject on the forum
best place for 250lit tank?
im sure youll get blasted for putting it all on back springs

[s.w.c]

air locks are great ain't they, here is my simple way of dealing with it, follow these word then look at pics i will try to get it in the right order, OK get trolley put hose in drum, then get pipe from hose lock bit i use a 8mm straight push fit connector and blanking plug, then pull out plug stick it to the top of drum and turn on flow controller to max you will hear when air lock is gone it takes about 10 too 20 seconds depending how much of a air lock you got, then turn off get your pole hose take off push fit cap connect to straight push fit and your up and running again, but the best bit about this way is it don't take long and more important you don't waste any water on the floor.

[jikwan]

smythy
great pcs and explination
thats what i used to do to save the water
got tired of it and said to hell with it and let the water waste
theres too much fiddling about

were working on it   hang on there will come a time when airlock problem is solved

[L.J.Thorpe]

lj
i think i know what it is
some simple non return valve idea
the hoselock femail non return devices dont work so well in my experience

well you got me there  but i have been using a cheap non return female connector all day and it works a treat ;Dproblem solved for me,maybe you need to try a few different makes of stop connectors and see if one works(the hozelock one i tried first"fluttered" but the cheap generic one worked fine with varistream at normal settings and only fluttered at low settings

[L.J.Thorpe]

smithys sort them pics out man i thought my computer was bust

[jikwan]

i reckon its the final answer
just about to set off fo poundland  i think theyre shut

ill rifle through the hozlocks i got   there must be a good one

if it works for you it will work for everyone

[L.J.Thorpe]

go for it try a few the one i am using came out of a sprinkler set from wilkos it even worked when i ran the barrel dry just a minute or so to get back up to pressure.Do you use a reel with your trolley or is hose direct to pump outlet

[jikwan]

no reel      direct
at the end of the intake hose is the manual valve   igot to be turning
the thing so many times a day
the hozlock non return could despense with that man valve

you say you ran dry..............no airlock??

[L.J.Thorpe]

not NO airlock BUT the pump just drew it through..no real drama just a gap of 30 to 45 seconds with slow stream then it picked up.Also bear in mind i am using a reel with 10mtrs of half inch and 60 mtrs of microbore so it takes a while when thats rolled out but honestly at no point today did i have to disconnect reel and free airlock then reconnect after changing barrels i am well chuffed with it,cost pence cant believe i never thought about it before,well done for bringing it up to start with