The most common cause of a goiter is lack of iodine, ...Even with the right amount of iodine, the thyroid gland can swell, creating a goiter. This can occur in any type of thyroid disease, including hyperthyroidism, hypothyroidism, thyroiditis, and thyroid cancer.
Shock treatment powder bags. Skim off whatever algae you can from the pool using a pool skimmer. Scrub the inside edges and walls of the pool with an algae brush to dislodge stuck algae. Purchase sufficient amounts of algaecide, as noted in the instructions on the bag, that match the total gallons of water in the pool.
And if you happen to be an alga, you are not alone: there are more than 20,000 varieties. In a swimming pool or spa, algae is that green, brown, yellow, black or pinkish slime that resembles fur growing on the steps and in cornersâplaces where circulation may not be optimum. The majority of swimming pools are in the sun several hours per day, and it is sunlight that will speed up algae growth.