Additives are unnecessary to the proper operation of household systems and may cause the sludge and scum in the septic tank to be discharged into the leach field, resulting in premature failure. Some additives may actually pollute your groundwater. You do not need to put special additives into your septic system.
Yao Defen ( 7ft 8in - 233 cm) Yao Defen claims to be the tallest woman in the world, with 7' 8 (233 cm). She weighs 200 kg (440 lbs) and has size 26 (UK) / 78 (EU) feet. Her gigantism is due to a tumor in her pituitary gland. (Photo)
She was the worldâs tallest woman, but she had a tragically short life. Yao Defen, who measured a gigantic 7ft 8in (2.36m), passed away last month aged just 40, it emerged today. At her peak, she also weighed over 31st (200kg) and had size 26ft. Scroll down for video. The world's tallest women Yao Defen stood at 7ft 8in tall before she died aged 40.