Begin by threading the pipes and fittings you wish to use using suitable tools. Include lots of union fittings throughout your air system so that you can conduct maintenance and make changes in the future. Use PTFE tape or dope and two pipe wrenches to tighten pipes together and ensure they're air-tight. Attach the airline pipes to the wall using wall mounts and use elbows coming off tee's for each drop so that it's difficult for the moisture to enter the drops. Regardless, you should add filters to the ends of each drop and regulators if necessary before the air enters your application. The air compressor filter regulator setup is crucial.