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  1. M

    RCD tripping. TT. where could be the fault? (FIRE ALARM SENSOR)

    EDIT: faulty fire alarm sensor spurred within ceiling was causing the RCD to trip. not mentioned in paperwork. all other sensors are on a separate ring, so this one is a mystery. electronic device which caused L-E fault only when powered up so this would have probably came up on a megger (if i...
  2. M

    which card do I need? jib ecs cscs ???

    Guidance would be appreciated as I don't know where to start with the 'cards'. I have - NVQ level 3 Electrical Installations - 18th Edition - Part P - little experience (4 years as on site maintenance electrician) Looking to get jobs as a mate on refurb / rewire contracts. Which card do I...
  3. M

    is MJ Electrical Training a credible company?

    Could anyone vouch for MJ Electrical Training? They offer the 18th Edition Exam – Bristol £222 I typically google reviews and this company has all al 5-star reviews which is quite incredible. I hope that this is the right forum.
  4. M

    do City & Guilds qualifications expire?

    do City & Guilds qualifications expire? Done my course (on top of my NVQ level 3) and got Level 3 Certificate in the Requirements for Electrical Installations BS7671 2008 (2382-100). Passed test in 2010. Worked as maintenance electrician for 6 years until 2016. Left the industry. Want to come...
  5. M

    hanging solar panel on a wall - what rails?

    Want to hang a 2x1m 20kg solar panel on a brick wall at an angle. There are kits available but they are designed for flat roofs. May not be strong enough for wall mounting (example photo below). Would like to know in an aluminium angle rail (photo below) be strong enough? What thickness should...
  6. M

    Could you vouch for the online store 'tradesparky', I never seen before?

    Hi I was after some basic solar setup for a shed and came across the: www.tradesparky.com They have no reviews anywhere, yet the website exists for 8 years according to 'who is'. Any one ever bought anything from them? Thank you in advance!
  7. M

    home gym cable machine

    Planning to make a home gym cable machine. Anyone built one? Tips, advice and recommendations please. It has to accommodate triceps and bicep as on the "drawing". I see the issue with the required cable length being different for each option. Load up to 30kg - bucket with sandbags - yeah, low...
  8. M

    DIY jumper leads

    Accidentally pulled a wire of a clamp of a "Heavy duty jumper leads". I was shocked to find that the wire is ~<1mm packed in a 10mm thick coat of PVC... What a ripoff. Anyway looking at google, it suggests that a 4mm wire should start a diesel no problems. Since I have decent clamps of that...
  9. M

    extractor fan air flow increase

    This is an odd one: Instead of a standard inline extractor fan, I used a 300mm PC fan. To adapt to 100mm ducting, I made a box with 100mm inlet and outlet. The box sits in the loft and takes air from a roof vent via 1.5m of 100mm ducting. It pumps the air down the house via 6m of 100mm ducting...
  10. M

    stove, gas-fire, connecting a flue into a chimney

    Need to plan best route for the flue of a multi-fuel burning stove. This is for emergency use. In case we have electricity cut. Gas boiler will not work without electricity. This house used to have 3 fireplaces and there is a substantial chimney with 3 ends at top (not sure how you call them!)...
  11. M

    unable to locate the outlet inside to gully

    My storm drain is slow. During heavy rain water pools up. The gully is square ceramic like on the photo with down pipe. With the difference that mine is 4 inches deep below concrete pavement. I went arms deep to remove silt but found none. I am unable to locate the outlet inside to gully -...
  12. M

    DIY carbon air filter cartridge

    DIY carbon air filter cartridge. Want to make a frame for activated carbon pellets to fit inside an air filter / purifier. I am thinking: - thin timber frame - rodent mesh screwed to the frame to keep the pellets in place. The 'cartridge' needs to be about 35x50cm and about 1.5cm thick. The...
  13. M

    crafting a hopper / basin

    I need to craft a basin on a wall to collect water flowing trough a couple of cracks in the wall. To then divert the water from this basin into a gutter below. I already have a gutter running along the wall (below the cracks) which currently captures about 40% of the water. The rest 60%...
  14. M

    how to divert incoming water off property ?

    Hi Have a problem with large amounts of water entering garden and submerging pavements around the house. Water should go down (it's a sloppy street) to next property but the neighbor built a 4 inch dam which makes the water pool 4 inch deep before it flows over. Can't build a dam on the other...
  15. M

    lowering voltage in extension lead - potential hazards?

    Hi I am wondering if lowering voltage in an extension lead can cause potential hazards? I want to control the speed of an AC 240V motor. Actually an array of 4 of them. Each is fitted with standard UK 3 pin plug. They are earthed to their metal casing. Found this voltage regulator on ebay...
  16. M

    fence posts made of concrete blocks?

    another of my silly ideas. can i build fence posts using concrete blocks? the blocks would go vertically. their size is 440x215x100mm so if stacked as on the drawing i made, there would be a suitable gap for mortar. the desired height of the post is 2m so 5 layers to stack. please comment...
  17. M

    concrete floor very cold and damp - what to do?

    Hi Looking for ideas and any input is welcome. I have a concrete slab in the ground floor. On top of it is a very thin layer of a leveling compound which is cracked here and there revealing the solid concrete. Carpeted over. I took reading from underneath the carpet and the temperature of the...
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