[a900]

As the title says do you use an rcd on your gutter vac?

And what length reel do you find the best for domestics ?

[Smurf]

As the title says do you use an rcd on your gutter vac?

And what length reel do you find the best for domestics ?

I carry 25 and 45m cable reels in the van depending on the size of the jobs I'm doing.
If you leave a lot of cable on a reel with say a 3000 watt vac running  it can get very hot so most reels have a built in heat trips that will cut the power off when it reaches a critical temp.  It's up to the individual if they also use an rcd or not but some rcd's will keep tripping out depending on the type/power of the vac being used.

[brianbarber]

Definitely, every time

Mr B

[a900]

I've been using extensions without an rcd but been a bit worried that a downpour could trip the customers power. Mr smith who works from home wouldn't be happy loosing his days computer work. 

[andyM]

Just buy an RCD socket from screwfix or wherever only about a tenner, I use one every time I use an extension lead.
The thermal cutout on the extension lead won't stop you getting an electrical shock, but an RCD will.

[Fin Clearview]

1. I always use an RCD and a temp cut out reel.

2. I always unwind the entire reel no matter how much i need to do the job, as said the reel can get very hot if not unwound even on our Numatic 2400w.

We use a 25m reel for all domestics. If the cable won't reach around the property entirely we just move it as nessercary.