and can you please describe each of them?
All the pipes have to be empty. Buy some flux and solder, lightly sand the ends of the pipe you will be soldering. Coat both pieces of pipe with flux, and put them together. Use a propane torch to heat the pieces of pipe at the connection, put the solder at the connection and move it completely around the connection. The heat will draw the solder into the connection , don't use too much solder. It would be best to experiment a couple of times on some scrap pieces to get the idea before you try the real thing.
Flush all the water out of the system as this will cause steam and hurt. Claen both pipes to be solderd. Emory cloth or sandpaper works. Apply Flux to both sites and connect. Heat the area with mepp gas torch. its the yellow one and works much faster. once youu acheive a slight glow it is hot enough to apply the solder all the way around it will melt as you go once youve applied enough turn the heat off and place a damp cloth on it. fyi the flux is needed to make the solder bond and suck it up to make a complete seal
well i only use one. Fuel Power. prevents gelling, raises fuel economy, raises hp, and a 12oz bottle treats up to 240 gallons
Detergent. A petrochemical surfactant which has a slower burn or flash point than the fuel. This helps keep injectors and valve seatings cleaner as dry sooty compounds do not adhere in these areas due to the oily residue left by the unspent oil in the surfactant. Benzine. Used to stop seraration of lighter and heavier liquids within the petrolium spirit (petrol) (gas) Helps keep it mixed and provides an even burn.